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Finding the Fourth Proportional to 695.96, 959.76 and 474.56

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Solution

The fourth proportional to 695.96, 959.76 and 474.56 is: 654.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.96 : 959.76 = 474.56 : x
  2. Step 2: Convert to fraction form
    695.96/959.76 = 474.56/x
  3. Step 3: Cross multiply
    695.96x = 959.76 × 474.56
  4. Step 4: Simplify right side
    695.96x = 455,463.71
  5. Step 5: Solve for x
    x = 455,463.71/695.96
  6. Step 6: Final answer
    x = 654.44

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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.