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Finding the Fourth Proportional to 696.42, 961.29 and 500.52

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Solution

The fourth proportional to 696.42, 961.29 and 500.52 is: 690.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.42 : 961.29 = 500.52 : x
  2. Step 2: Convert to fraction form
    696.42/961.29 = 500.52/x
  3. Step 3: Cross multiply
    696.42x = 961.29 × 500.52
  4. Step 4: Simplify right side
    696.42x = 481,144.87
  5. Step 5: Solve for x
    x = 481,144.87/696.42
  6. Step 6: Final answer
    x = 690.88

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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.