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Finding the Fourth Proportional to 513,938.52, 770,578.92 and 247,167.72

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Solution

The fourth proportional to 513,938.52, 770,578.92 and 247,167.72 is: 370,593.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,938.52 : 770,578.92 = 247,167.72 : x
  2. Step 2: Convert to fraction form
    513,938.52/770,578.92 = 247,167.72/x
  3. Step 3: Cross multiply
    513,938.52x = 770,578.92 × 247,167.72
  4. Step 4: Simplify right side
    513,938.52x = 190,462,234,736.46
  5. Step 5: Solve for x
    x = 190,462,234,736.46/513,938.52
  6. Step 6: Final answer
    x = 370,593.42

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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.