Home / 752,789.34-1,129,033.56-279,363.96

Finding the Fourth Proportional to 752,789.34, 1,129,033.56 and 279,363.96

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Solution

The fourth proportional to 752,789.34, 1,129,033.56 and 279,363.96 is: 418,990.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,789.34 : 1,129,033.56 = 279,363.96 : x
  2. Step 2: Convert to fraction form
    752,789.34/1,129,033.56 = 279,363.96/x
  3. Step 3: Cross multiply
    752,789.34x = 1,129,033.56 × 279,363.96
  4. Step 4: Simplify right side
    752,789.34x = 315,411,286,294.50
  5. Step 5: Solve for x
    x = 315,411,286,294.50/752,789.34
  6. Step 6: Final answer
    x = 418,990.11

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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.