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Finding the Fourth Proportional to 542,323.76, 748,397.74 and 297,306.88

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Solution

The fourth proportional to 542,323.76, 748,397.74 and 297,306.88 is: 410,278.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,323.76 : 748,397.74 = 297,306.88 : x
  2. Step 2: Convert to fraction form
    542,323.76/748,397.74 = 297,306.88/x
  3. Step 3: Cross multiply
    542,323.76x = 748,397.74 × 297,306.88
  4. Step 4: Simplify right side
    542,323.76x = 222,503,797,078.45
  5. Step 5: Solve for x
    x = 222,503,797,078.45/542,323.76
  6. Step 6: Final answer
    x = 410,278.53

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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.