Finding the Fourth Proportional to 527,445.92, 727,874.69 and 285,729.48
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Solution
The fourth proportional to 527,445.92, 727,874.69 and 285,729.48 is: 394,306.32
Step by Step Solution
- Step 1: Write the proportion equation
527,445.92 : 727,874.69 = 285,729.48 : x - Step 2: Convert to fraction form
527,445.92/727,874.69 = 285,729.48/x - Step 3: Cross multiply
527,445.92x = 727,874.69 × 285,729.48 - Step 4: Simplify right side
527,445.92x = 207,975,255,250.21 - Step 5: Solve for x
x = 207,975,255,250.21/527,445.92 - Step 6: Final answer
x = 394,306.32
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1.5x scale
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.