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Finding the Fourth Proportional to 646,560.90, 969,841.26 and 247,241.88

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Solution

The fourth proportional to 646,560.90, 969,841.26 and 247,241.88 is: 370,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,560.90 : 969,841.26 = 247,241.88 : x
  2. Step 2: Convert to fraction form
    646,560.90/969,841.26 = 247,241.88/x
  3. Step 3: Cross multiply
    646,560.90x = 969,841.26 × 247,241.88
  4. Step 4: Simplify right side
    646,560.90x = 239,785,376,423.97
  5. Step 5: Solve for x
    x = 239,785,376,423.97/646,560.90
  6. Step 6: Final answer
    x = 370,862.79

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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.