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Finding the Fourth Proportional to 437,565.40, 656,348.10 and 331,277.20

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Solution

The fourth proportional to 437,565.40, 656,348.10 and 331,277.20 is: 496,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,565.40 : 656,348.10 = 331,277.20 : x
  2. Step 2: Convert to fraction form
    437,565.40/656,348.10 = 331,277.20/x
  3. Step 3: Cross multiply
    437,565.40x = 656,348.10 × 331,277.20
  4. Step 4: Simplify right side
    437,565.40x = 217,433,160,793.32
  5. Step 5: Solve for x
    x = 217,433,160,793.32/437,565.40
  6. Step 6: Final answer
    x = 496,915.80

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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.