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Finding the Fourth Proportional to 716.66, 994.04 and 697.69

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Solution

The fourth proportional to 716.66, 994.04 and 697.69 is: 967.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.66 : 994.04 = 697.69 : x
  2. Step 2: Convert to fraction form
    716.66/994.04 = 697.69/x
  3. Step 3: Cross multiply
    716.66x = 994.04 × 697.69
  4. Step 4: Simplify right side
    716.66x = 693,531.77
  5. Step 5: Solve for x
    x = 693,531.77/716.66
  6. Step 6: Final answer
    x = 967.73

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.