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Finding the Fourth Proportional to 542,297.20, 813,906.60 and 437,234.80

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Solution

The fourth proportional to 542,297.20, 813,906.60 and 437,234.80 is: 656,223.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,297.20 : 813,906.60 = 437,234.80 : x
  2. Step 2: Convert to fraction form
    542,297.20/813,906.60 = 437,234.80/x
  3. Step 3: Cross multiply
    542,297.20x = 813,906.60 × 437,234.80
  4. Step 4: Simplify right side
    542,297.20x = 355,868,289,469.68
  5. Step 5: Solve for x
    x = 355,868,289,469.68/542,297.20
  6. Step 6: Final answer
    x = 656,223.73

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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.