Home / 437,539.40-656,309.10-331,251.20

Finding the Fourth Proportional to 437,539.40, 656,309.10 and 331,251.20

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Solution

The fourth proportional to 437,539.40, 656,309.10 and 331,251.20 is: 496,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,539.40 : 656,309.10 = 331,251.20 : x
  2. Step 2: Convert to fraction form
    437,539.40/656,309.10 = 331,251.20/x
  3. Step 3: Cross multiply
    437,539.40x = 656,309.10 × 331,251.20
  4. Step 4: Simplify right side
    437,539.40x = 217,403,176,945.92
  5. Step 5: Solve for x
    x = 217,403,176,945.92/437,539.40
  6. Step 6: Final answer
    x = 496,876.80

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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.