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Finding the Fourth Proportional to 542,595, 748,781.10 and 304,131

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Solution

The fourth proportional to 542,595, 748,781.10 and 304,131 is: 419,700.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,595 : 748,781.10 = 304,131 : x
  2. Step 2: Convert to fraction form
    542,595/748,781.10 = 304,131/x
  3. Step 3: Cross multiply
    542,595x = 748,781.10 × 304,131
  4. Step 4: Simplify right side
    542,595x = 227,727,544,724.10
  5. Step 5: Solve for x
    x = 227,727,544,724.10/542,595
  6. Step 6: Final answer
    x = 419,700.78

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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.