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Finding the Fourth Proportional to 489,123.20, 733,320.30 and 252,635.60

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Solution

The fourth proportional to 489,123.20, 733,320.30 and 252,635.60 is: 378,765.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,123.20 : 733,320.30 = 252,635.60 : x
  2. Step 2: Convert to fraction form
    489,123.20/733,320.30 = 252,635.60/x
  3. Step 3: Cross multiply
    489,123.20x = 733,320.30 × 252,635.60
  4. Step 4: Simplify right side
    489,123.20x = 185,262,813,982.68
  5. Step 5: Solve for x
    x = 185,262,813,982.68/489,123.20
  6. Step 6: Final answer
    x = 378,765.13

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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.