Home / 667,781.92-1,001,004.64-331,068.96

Finding the Fourth Proportional to 667,781.92, 1,001,004.64 and 331,068.96

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Solution

The fourth proportional to 667,781.92, 1,001,004.64 and 331,068.96 is: 496,272.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,781.92 : 1,001,004.64 = 331,068.96 : x
  2. Step 2: Convert to fraction form
    667,781.92/1,001,004.64 = 331,068.96/x
  3. Step 3: Cross multiply
    667,781.92x = 1,001,004.64 × 331,068.96
  4. Step 4: Simplify right side
    667,781.92x = 331,401,565,119.97
  5. Step 5: Solve for x
    x = 331,401,565,119.97/667,781.92
  6. Step 6: Final answer
    x = 496,272.14

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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.