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Finding the Fourth Proportional to 542,324.76, 748,399.12 and 297,307.88

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Solution

The fourth proportional to 542,324.76, 748,399.12 and 297,307.88 is: 410,279.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,324.76 : 748,399.12 = 297,307.88 : x
  2. Step 2: Convert to fraction form
    542,324.76/748,399.12 = 297,307.88/x
  3. Step 3: Cross multiply
    542,324.76x = 748,399.12 × 297,307.88
  4. Step 4: Simplify right side
    542,324.76x = 222,504,955,761.07
  5. Step 5: Solve for x
    x = 222,504,955,761.07/542,324.76
  6. Step 6: Final answer
    x = 410,279.91

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.