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Finding the Fourth Proportional to 447,773.35, 671,748.68 and 127,928

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Solution

The fourth proportional to 447,773.35, 671,748.68 and 127,928 is: 191,917.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,773.35 : 671,748.68 = 127,928 : x
  2. Step 2: Convert to fraction form
    447,773.35/671,748.68 = 127,928/x
  3. Step 3: Cross multiply
    447,773.35x = 671,748.68 × 127,928
  4. Step 4: Simplify right side
    447,773.35x = 85,935,465,135.04
  5. Step 5: Solve for x
    x = 85,935,465,135.04/447,773.35
  6. Step 6: Final answer
    x = 191,917.33

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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.