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Finding the Fourth Proportional to 699.52, 966.33 and 662.62

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Solution

The fourth proportional to 699.52, 966.33 and 662.62 is: 915.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.52 : 966.33 = 662.62 : x
  2. Step 2: Convert to fraction form
    699.52/966.33 = 662.62/x
  3. Step 3: Cross multiply
    699.52x = 966.33 × 662.62
  4. Step 4: Simplify right side
    699.52x = 640,309.58
  5. Step 5: Solve for x
    x = 640,309.58/699.52
  6. Step 6: Final answer
    x = 915.36

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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.