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Finding the Fourth Proportional to 580,761.72, 871,111.56 and 181,356.78

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Solution

The fourth proportional to 580,761.72, 871,111.56 and 181,356.78 is: 272,025.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,761.72 : 871,111.56 = 181,356.78 : x
  2. Step 2: Convert to fraction form
    580,761.72/871,111.56 = 181,356.78/x
  3. Step 3: Cross multiply
    580,761.72x = 871,111.56 × 181,356.78
  4. Step 4: Simplify right side
    580,761.72x = 157,981,987,542.38
  5. Step 5: Solve for x
    x = 157,981,987,542.38/580,761.72
  6. Step 6: Final answer
    x = 272,025.48

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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.