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Finding the Fourth Proportional to 391,229.60, 585,977.37 and 300,605.27

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Solution

The fourth proportional to 391,229.60, 585,977.37 and 300,605.27 is: 450,241.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,229.60 : 585,977.37 = 300,605.27 : x
  2. Step 2: Convert to fraction form
    391,229.60/585,977.37 = 300,605.27/x
  3. Step 3: Cross multiply
    391,229.60x = 585,977.37 × 300,605.27
  4. Step 4: Simplify right side
    391,229.60x = 176,147,882,592.85
  5. Step 5: Solve for x
    x = 176,147,882,592.85/391,229.60
  6. Step 6: Final answer
    x = 450,241.71

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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.