Home / 457,316.20-685,974.30-124,892.20

Finding the Fourth Proportional to 457,316.20, 685,974.30 and 124,892.20

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Solution

The fourth proportional to 457,316.20, 685,974.30 and 124,892.20 is: 187,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,316.20 : 685,974.30 = 124,892.20 : x
  2. Step 2: Convert to fraction form
    457,316.20/685,974.30 = 124,892.20/x
  3. Step 3: Cross multiply
    457,316.20x = 685,974.30 × 124,892.20
  4. Step 4: Simplify right side
    457,316.20x = 85,672,839,470.46
  5. Step 5: Solve for x
    x = 85,672,839,470.46/457,316.20
  6. Step 6: Final answer
    x = 187,338.30

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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.