Home / 766,753.38-1,150,129.92-205,787.88

Finding the Fourth Proportional to 766,753.38, 1,150,129.92 and 205,787.88

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Solution

The fourth proportional to 766,753.38, 1,150,129.92 and 205,787.88 is: 308,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,753.38 : 1,150,129.92 = 205,787.88 : x
  2. Step 2: Convert to fraction form
    766,753.38/1,150,129.92 = 205,787.88/x
  3. Step 3: Cross multiply
    766,753.38x = 1,150,129.92 × 205,787.88
  4. Step 4: Simplify right side
    766,753.38x = 236,682,797,961.37
  5. Step 5: Solve for x
    x = 236,682,797,961.37/766,753.38
  6. Step 6: Final answer
    x = 308,681.78

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Double scale
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Similar ratio
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1.5x scale

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.