Home / 667,445.72-1,001,167.92-268,086.56

Finding the Fourth Proportional to 667,445.72, 1,001,167.92 and 268,086.56

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Solution

The fourth proportional to 667,445.72, 1,001,167.92 and 268,086.56 is: 402,129.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,445.72 : 1,001,167.92 = 268,086.56 : x
  2. Step 2: Convert to fraction form
    667,445.72/1,001,167.92 = 268,086.56/x
  3. Step 3: Cross multiply
    667,445.72x = 1,001,167.92 × 268,086.56
  4. Step 4: Simplify right side
    667,445.72x = 268,399,663,655.16
  5. Step 5: Solve for x
    x = 268,399,663,655.16/667,445.72
  6. Step 6: Final answer
    x = 402,129.57

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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.