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Finding the Fourth Proportional to 392,577.80, 588,866.99 and 126,338.27

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Solution

The fourth proportional to 392,577.80, 588,866.99 and 126,338.27 is: 189,507.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,577.80 : 588,866.99 = 126,338.27 : x
  2. Step 2: Convert to fraction form
    392,577.80/588,866.99 = 126,338.27/x
  3. Step 3: Cross multiply
    392,577.80x = 588,866.99 × 126,338.27
  4. Step 4: Simplify right side
    392,577.80x = 74,396,433,200.68
  5. Step 5: Solve for x
    x = 74,396,433,200.68/392,577.80
  6. Step 6: Final answer
    x = 189,507.49

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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.