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Finding the Fourth Proportional to 880.56, 1,320.92 and 495.44

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Solution

The fourth proportional to 880.56, 1,320.92 and 495.44 is: 743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.56 : 1,320.92 = 495.44 : x
  2. Step 2: Convert to fraction form
    880.56/1,320.92 = 495.44/x
  3. Step 3: Cross multiply
    880.56x = 1,320.92 × 495.44
  4. Step 4: Simplify right side
    880.56x = 654,436.60
  5. Step 5: Solve for x
    x = 654,436.60/880.56
  6. Step 6: Final answer
    x = 743.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.