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Finding the Fourth Proportional to 581,046.60, 869,695 and 300,177.48

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Solution

The fourth proportional to 581,046.60, 869,695 and 300,177.48 is: 449,297.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,046.60 : 869,695 = 300,177.48 : x
  2. Step 2: Convert to fraction form
    581,046.60/869,695 = 300,177.48/x
  3. Step 3: Cross multiply
    581,046.60x = 869,695 × 300,177.48
  4. Step 4: Simplify right side
    581,046.60x = 261,062,853,468.60
  5. Step 5: Solve for x
    x = 261,062,853,468.60/581,046.60
  6. Step 6: Final answer
    x = 449,297.62

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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.