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Finding the Fourth Proportional to 866.24, 1,194 and 679.04

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Solution

The fourth proportional to 866.24, 1,194 and 679.04 is: 935.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    866.24 : 1,194 = 679.04 : x
  2. Step 2: Convert to fraction form
    866.24/1,194 = 679.04/x
  3. Step 3: Cross multiply
    866.24x = 1,194 × 679.04
  4. Step 4: Simplify right side
    866.24x = 810,773.76
  5. Step 5: Solve for x
    x = 810,773.76/866.24
  6. Step 6: Final answer
    x = 935.97

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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.