Finding the Fourth Proportional to 437,489.40, 656,234.10 and 331,201.20
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Solution
The fourth proportional to 437,489.40, 656,234.10 and 331,201.20 is: 496,801.80
Step by Step Solution
- Step 1: Write the proportion equation
437,489.40 : 656,234.10 = 331,201.20 : x - Step 2: Convert to fraction form
437,489.40/656,234.10 = 331,201.20/x - Step 3: Cross multiply
437,489.40x = 656,234.10 × 331,201.20 - Step 4: Simplify right side
437,489.40x = 217,345,521,400.92 - Step 5: Solve for x
x = 217,345,521,400.92/437,489.40 - Step 6: Final answer
x = 496,801.80
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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.