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Finding the Fourth Proportional to 391,529.52, 587,337.24 and 125,227.44

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Solution

The fourth proportional to 391,529.52, 587,337.24 and 125,227.44 is: 187,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,529.52 : 587,337.24 = 125,227.44 : x
  2. Step 2: Convert to fraction form
    391,529.52/587,337.24 = 125,227.44/x
  3. Step 3: Cross multiply
    391,529.52x = 587,337.24 × 125,227.44
  4. Step 4: Simplify right side
    391,529.52x = 73,550,738,981.87
  5. Step 5: Solve for x
    x = 73,550,738,981.87/391,529.52
  6. Step 6: Final answer
    x = 187,854.90

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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.