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Finding the Fourth Proportional to 649,019.82, 900,229.66 and 631,757.10

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Solution

The fourth proportional to 649,019.82, 900,229.66 and 631,757.10 is: 876,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,019.82 : 900,229.66 = 631,757.10 : x
  2. Step 2: Convert to fraction form
    649,019.82/900,229.66 = 631,757.10/x
  3. Step 3: Cross multiply
    649,019.82x = 900,229.66 × 631,757.10
  4. Step 4: Simplify right side
    649,019.82x = 568,726,479,335.59
  5. Step 5: Solve for x
    x = 568,726,479,335.59/649,019.82
  6. Step 6: Final answer
    x = 876,285.23

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.