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Finding the Fourth Proportional to 392,330.70, 588,496.05 and 303,757.20

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Solution

The fourth proportional to 392,330.70, 588,496.05 and 303,757.20 is: 455,635.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,330.70 : 588,496.05 = 303,757.20 : x
  2. Step 2: Convert to fraction form
    392,330.70/588,496.05 = 303,757.20/x
  3. Step 3: Cross multiply
    392,330.70x = 588,496.05 × 303,757.20
  4. Step 4: Simplify right side
    392,330.70x = 178,759,912,359.06
  5. Step 5: Solve for x
    x = 178,759,912,359.06/392,330.70
  6. Step 6: Final answer
    x = 455,635.80

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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.