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Finding the Fourth Proportional to 880.60, 1,319.10 and 495.04

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Solution

The fourth proportional to 880.60, 1,319.10 and 495.04 is: 741.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.60 : 1,319.10 = 495.04 : x
  2. Step 2: Convert to fraction form
    880.60/1,319.10 = 495.04/x
  3. Step 3: Cross multiply
    880.60x = 1,319.10 × 495.04
  4. Step 4: Simplify right side
    880.60x = 653,007.26
  5. Step 5: Solve for x
    x = 653,007.26/880.60
  6. Step 6: Final answer
    x = 741.55

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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.