Home / 752,500.18-1,129,137.60-499,954.54

Finding the Fourth Proportional to 752,500.18, 1,129,137.60 and 499,954.54

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Solution

The fourth proportional to 752,500.18, 1,129,137.60 and 499,954.54 is: 750,189.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,500.18 : 1,129,137.60 = 499,954.54 : x
  2. Step 2: Convert to fraction form
    752,500.18/1,129,137.60 = 499,954.54/x
  3. Step 3: Cross multiply
    752,500.18x = 1,129,137.60 × 499,954.54
  4. Step 4: Simplify right side
    752,500.18x = 564,517,469,404.70
  5. Step 5: Solve for x
    x = 564,517,469,404.70/752,500.18
  6. Step 6: Final answer
    x = 750,189.15

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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.