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Finding the Fourth Proportional to 407,635.85, 610,787.93 and 247,760.69

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Solution

The fourth proportional to 407,635.85, 610,787.93 and 247,760.69 is: 371,236.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,635.85 : 610,787.93 = 247,760.69 : x
  2. Step 2: Convert to fraction form
    407,635.85/610,787.93 = 247,760.69/x
  3. Step 3: Cross multiply
    407,635.85x = 610,787.93 × 247,760.69
  4. Step 4: Simplify right side
    407,635.85x = 151,329,234,687.73
  5. Step 5: Solve for x
    x = 151,329,234,687.73/407,635.85
  6. Step 6: Final answer
    x = 371,236.32

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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.