Question

I have a bargraph that has a max height of 500px. This graph itself has prices ranging from $0 to $10.5 million.

I can move the bar every 1 pixel. I am trying to come up with the math to be able to move the bargraph in $1 million interments.

I’ve already tried 10500000 / 500 which yields me only 21000 which is far beyond the 500px limit.

So math gurus… what should the math be for this? :o)

Answer 1

length of bar in dollars / length of bar in pixels = $10,500,000 / 500
pixels

cross-multiply to get:

length of bar in dollars * 500 pixels = length of bar in pixels *
$10,500,000

divide to get “length of bar in pixels” by itself:

length of bar in pixels = length of bar in dollars * 500 pixels /
$10,500,000

Now just plug in whatever money value you want to get a pixel value. For example, if you want the bar to be 3 million dollars,

length of bar in pixels = $3,000,000 * 500 pixels / $10,500,000 = 143
pixels