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Finding the Fourth Proportional to 697.01, 959.72 and 613.71

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Solution

The fourth proportional to 697.01, 959.72 and 613.71 is: 845.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.01 : 959.72 = 613.71 : x
  2. Step 2: Convert to fraction form
    697.01/959.72 = 613.71/x
  3. Step 3: Cross multiply
    697.01x = 959.72 × 613.71
  4. Step 4: Simplify right side
    697.01x = 588,986.69
  5. Step 5: Solve for x
    x = 588,986.69/697.01
  6. Step 6: Final answer
    x = 845.03

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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.