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Finding the Fourth Proportional to 392,578.80, 588,868.49 and 126,339.27

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Solution

The fourth proportional to 392,578.80, 588,868.49 and 126,339.27 is: 189,509.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,578.80 : 588,868.49 = 126,339.27 : x
  2. Step 2: Convert to fraction form
    392,578.80/588,868.49 = 126,339.27/x
  3. Step 3: Cross multiply
    392,578.80x = 588,868.49 × 126,339.27
  4. Step 4: Simplify right side
    392,578.80x = 74,397,215,152.60
  5. Step 5: Solve for x
    x = 74,397,215,152.60/392,578.80
  6. Step 6: Final answer
    x = 189,509.00

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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.