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Finding the Fourth Proportional to 687,959, 1,031,984 and 182,512.88

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Solution

The fourth proportional to 687,959, 1,031,984 and 182,512.88 is: 273,781.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,959 : 1,031,984 = 182,512.88 : x
  2. Step 2: Convert to fraction form
    687,959/1,031,984 = 182,512.88/x
  3. Step 3: Cross multiply
    687,959x = 1,031,984 × 182,512.88
  4. Step 4: Simplify right side
    687,959x = 188,350,371,953.92
  5. Step 5: Solve for x
    x = 188,350,371,953.92/687,959
  6. Step 6: Final answer
    x = 273,781.39

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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.