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Finding the Fourth Proportional to 539,780.36, 809,614.90 and 179,912.33

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Solution

The fourth proportional to 539,780.36, 809,614.90 and 179,912.33 is: 269,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,780.36 : 809,614.90 = 179,912.33 : x
  2. Step 2: Convert to fraction form
    539,780.36/809,614.90 = 179,912.33/x
  3. Step 3: Cross multiply
    539,780.36x = 809,614.90 × 179,912.33
  4. Step 4: Simplify right side
    539,780.36x = 145,659,703,061.72
  5. Step 5: Solve for x
    x = 145,659,703,061.72/539,780.36
  6. Step 6: Final answer
    x = 269,849.95

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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.