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Finding the Fourth Proportional to 557,169.54, 768,961.96 and 327,715.88

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Solution

The fourth proportional to 557,169.54, 768,961.96 and 327,715.88 is: 452,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,169.54 : 768,961.96 = 327,715.88 : x
  2. Step 2: Convert to fraction form
    557,169.54/768,961.96 = 327,715.88/x
  3. Step 3: Cross multiply
    557,169.54x = 768,961.96 × 327,715.88
  4. Step 4: Simplify right side
    557,169.54x = 252,001,040,743.83
  5. Step 5: Solve for x
    x = 252,001,040,743.83/557,169.54
  6. Step 6: Final answer
    x = 452,287.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.