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Finding the Fourth Proportional to 621,468.72, 932,241.96 and 247,482

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Solution

The fourth proportional to 621,468.72, 932,241.96 and 247,482 is: 371,238.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,468.72 : 932,241.96 = 247,482 : x
  2. Step 2: Convert to fraction form
    621,468.72/932,241.96 = 247,482/x
  3. Step 3: Cross multiply
    621,468.72x = 932,241.96 × 247,482
  4. Step 4: Simplify right side
    621,468.72x = 230,713,104,744.72
  5. Step 5: Solve for x
    x = 230,713,104,744.72/621,468.72
  6. Step 6: Final answer
    x = 371,238.48

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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.