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Finding the Fourth Proportional to 542,708.16, 748,248.98 and 387,844.42

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Solution

The fourth proportional to 542,708.16, 748,248.98 and 387,844.42 is: 534,733.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,708.16 : 748,248.98 = 387,844.42 : x
  2. Step 2: Convert to fraction form
    542,708.16/748,248.98 = 387,844.42/x
  3. Step 3: Cross multiply
    542,708.16x = 748,248.98 × 387,844.42
  4. Step 4: Simplify right side
    542,708.16x = 290,204,191,663.69
  5. Step 5: Solve for x
    x = 290,204,191,663.69/542,708.16
  6. Step 6: Final answer
    x = 534,733.42

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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.