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Finding the Fourth Proportional to 666,472.73, 999,750.63 and 267,061.61

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Solution

The fourth proportional to 666,472.73, 999,750.63 and 267,061.61 is: 400,609.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,472.73 : 999,750.63 = 267,061.61 : x
  2. Step 2: Convert to fraction form
    666,472.73/999,750.63 = 267,061.61/x
  3. Step 3: Cross multiply
    666,472.73x = 999,750.63 × 267,061.61
  4. Step 4: Simplify right side
    666,472.73x = 266,995,012,846.31
  5. Step 5: Solve for x
    x = 266,995,012,846.31/666,472.73
  6. Step 6: Final answer
    x = 400,609.06

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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.