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Finding the Fourth Proportional to 880.55, 1,215.34 and 733.04

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Solution

The fourth proportional to 880.55, 1,215.34 and 733.04 is: 1,011.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.55 : 1,215.34 = 733.04 : x
  2. Step 2: Convert to fraction form
    880.55/1,215.34 = 733.04/x
  3. Step 3: Cross multiply
    880.55x = 1,215.34 × 733.04
  4. Step 4: Simplify right side
    880.55x = 890,884.92
  5. Step 5: Solve for x
    x = 890,884.92/880.55
  6. Step 6: Final answer
    x = 1,011.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.