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Finding the Fourth Proportional to 492,773.69, 739,047.54 and 137,812.79

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Solution

The fourth proportional to 492,773.69, 739,047.54 and 137,812.79 is: 206,687.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,773.69 : 739,047.54 = 137,812.79 : x
  2. Step 2: Convert to fraction form
    492,773.69/739,047.54 = 137,812.79/x
  3. Step 3: Cross multiply
    492,773.69x = 739,047.54 × 137,812.79
  4. Step 4: Simplify right side
    492,773.69x = 101,850,205,794.45
  5. Step 5: Solve for x
    x = 101,850,205,794.45/492,773.69
  6. Step 6: Final answer
    x = 206,687.59

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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.