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Finding the Fourth Proportional to 884.76, 1,327.12 and 299.75

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Solution

The fourth proportional to 884.76, 1,327.12 and 299.75 is: 449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.76 : 1,327.12 = 299.75 : x
  2. Step 2: Convert to fraction form
    884.76/1,327.12 = 299.75/x
  3. Step 3: Cross multiply
    884.76x = 1,327.12 × 299.75
  4. Step 4: Simplify right side
    884.76x = 397,809.76
  5. Step 5: Solve for x
    x = 397,809.76/884.76
  6. Step 6: Final answer
    x = 449.63

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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.