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Finding the Fourth Proportional to 868, 1,196.76 and 710.44

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Solution

The fourth proportional to 868, 1,196.76 and 710.44 is: 979.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    868 : 1,196.76 = 710.44 : x
  2. Step 2: Convert to fraction form
    868/1,196.76 = 710.44/x
  3. Step 3: Cross multiply
    868x = 1,196.76 × 710.44
  4. Step 4: Simplify right side
    868x = 850,226.17
  5. Step 5: Solve for x
    x = 850,226.17/868
  6. Step 6: Final answer
    x = 979.52

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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.