Finding the Fourth Proportional to 829,987.60, 1,245,564.60 and 531,194.80
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Solution
The fourth proportional to 829,987.60, 1,245,564.60 and 531,194.80 is: 797,165.45
Step by Step Solution
- Step 1: Write the proportion equation
829,987.60 : 1,245,564.60 = 531,194.80 : x - Step 2: Convert to fraction form
829,987.60/1,245,564.60 = 531,194.80/x - Step 3: Cross multiply
829,987.60x = 1,245,564.60 × 531,194.80 - Step 4: Simplify right side
829,987.60x = 661,637,438,584.08 - Step 5: Solve for x
x = 661,637,438,584.08/829,987.60 - Step 6: Final answer
x = 797,165.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.