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Finding the Fourth Proportional to 695.66, 952.44 and 688.98

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Solution

The fourth proportional to 695.66, 952.44 and 688.98 is: 943.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.66 : 952.44 = 688.98 : x
  2. Step 2: Convert to fraction form
    695.66/952.44 = 688.98/x
  3. Step 3: Cross multiply
    695.66x = 952.44 × 688.98
  4. Step 4: Simplify right side
    695.66x = 656,212.11
  5. Step 5: Solve for x
    x = 656,212.11/695.66
  6. Step 6: Final answer
    x = 943.29

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.