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Finding the Fourth Proportional to 547,342.60, 820,625.10 and 247,966.60

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Solution

The fourth proportional to 547,342.60, 820,625.10 and 247,966.60 is: 371,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,342.60 : 820,625.10 = 247,966.60 : x
  2. Step 2: Convert to fraction form
    547,342.60/820,625.10 = 247,966.60/x
  3. Step 3: Cross multiply
    547,342.60x = 820,625.10 × 247,966.60
  4. Step 4: Simplify right side
    547,342.60x = 203,487,615,921.66
  5. Step 5: Solve for x
    x = 203,487,615,921.66/547,342.60
  6. Step 6: Final answer
    x = 371,773.76

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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.