Finding the Fourth Proportional to 527,136.08, 727,448.09 and 285,418.80
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Solution
The fourth proportional to 527,136.08, 727,448.09 and 285,418.80 is: 393,878.11
Step by Step Solution
- Step 1: Write the proportion equation
527,136.08 : 727,448.09 = 285,418.80 : x - Step 2: Convert to fraction form
527,136.08/727,448.09 = 285,418.80/x - Step 3: Cross multiply
527,136.08x = 727,448.09 × 285,418.80 - Step 4: Simplify right side
527,136.08x = 207,627,359,483.00 - Step 5: Solve for x
x = 207,627,359,483.00/527,136.08 - Step 6: Final answer
x = 393,878.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.