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Finding the Fourth Proportional to 626.34, 868.52 and 605.58

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Solution

The fourth proportional to 626.34, 868.52 and 605.58 is: 839.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.34 : 868.52 = 605.58 : x
  2. Step 2: Convert to fraction form
    626.34/868.52 = 605.58/x
  3. Step 3: Cross multiply
    626.34x = 868.52 × 605.58
  4. Step 4: Simplify right side
    626.34x = 525,958.34
  5. Step 5: Solve for x
    x = 525,958.34/626.34
  6. Step 6: Final answer
    x = 839.73

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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.