Home / 681,781.27-940,861.03-375,850.65

Finding the Fourth Proportional to 681,781.27, 940,861.03 and 375,850.65

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Solution

The fourth proportional to 681,781.27, 940,861.03 and 375,850.65 is: 518,675.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,781.27 : 940,861.03 = 375,850.65 : x
  2. Step 2: Convert to fraction form
    681,781.27/940,861.03 = 375,850.65/x
  3. Step 3: Cross multiply
    681,781.27x = 940,861.03 × 375,850.65
  4. Step 4: Simplify right side
    681,781.27x = 353,623,229,685.17
  5. Step 5: Solve for x
    x = 353,623,229,685.17/681,781.27
  6. Step 6: Final answer
    x = 518,675.48

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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.