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Finding the Fourth Proportional to 439,727.70, 659,591.55 and 253,103.70

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Solution

The fourth proportional to 439,727.70, 659,591.55 and 253,103.70 is: 379,655.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,727.70 : 659,591.55 = 253,103.70 : x
  2. Step 2: Convert to fraction form
    439,727.70/659,591.55 = 253,103.70/x
  3. Step 3: Cross multiply
    439,727.70x = 659,591.55 × 253,103.70
  4. Step 4: Simplify right side
    439,727.70x = 166,945,061,793.74
  5. Step 5: Solve for x
    x = 166,945,061,793.74/439,727.70
  6. Step 6: Final answer
    x = 379,655.55

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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.