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Finding the Fourth Proportional to 392,049.75, 588,079.17 and 372,928.08

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Solution

The fourth proportional to 392,049.75, 588,079.17 and 372,928.08 is: 559,396.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,049.75 : 588,079.17 = 372,928.08 : x
  2. Step 2: Convert to fraction form
    392,049.75/588,079.17 = 372,928.08/x
  3. Step 3: Cross multiply
    392,049.75x = 588,079.17 × 372,928.08
  4. Step 4: Simplify right side
    392,049.75x = 219,311,235,756.09
  5. Step 5: Solve for x
    x = 219,311,235,756.09/392,049.75
  6. Step 6: Final answer
    x = 559,396.44

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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.