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Finding the Fourth Proportional to 884.73, 1,327.11 and 299.74

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Solution

The fourth proportional to 884.73, 1,327.11 and 299.74 is: 449.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.73 : 1,327.11 = 299.74 : x
  2. Step 2: Convert to fraction form
    884.73/1,327.11 = 299.74/x
  3. Step 3: Cross multiply
    884.73x = 1,327.11 × 299.74
  4. Step 4: Simplify right side
    884.73x = 397,787.95
  5. Step 5: Solve for x
    x = 397,787.95/884.73
  6. Step 6: Final answer
    x = 449.62

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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.