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Finding the Fourth Proportional to 892.98, 1,337.04 and 718.74

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Solution

The fourth proportional to 892.98, 1,337.04 and 718.74 is: 1,076.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    892.98 : 1,337.04 = 718.74 : x
  2. Step 2: Convert to fraction form
    892.98/1,337.04 = 718.74/x
  3. Step 3: Cross multiply
    892.98x = 1,337.04 × 718.74
  4. Step 4: Simplify right side
    892.98x = 960,984.13
  5. Step 5: Solve for x
    x = 960,984.13/892.98
  6. Step 6: Final answer
    x = 1,076.15

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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.