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Finding the Fourth Proportional to 892.91, 1,233.68 and 694.46

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Solution

The fourth proportional to 892.91, 1,233.68 and 694.46 is: 959.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    892.91 : 1,233.68 = 694.46 : x
  2. Step 2: Convert to fraction form
    892.91/1,233.68 = 694.46/x
  3. Step 3: Cross multiply
    892.91x = 1,233.68 × 694.46
  4. Step 4: Simplify right side
    892.91x = 856,731.77
  5. Step 5: Solve for x
    x = 856,731.77/892.91
  6. Step 6: Final answer
    x = 959.49

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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.