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Finding the Fourth Proportional to 626.48, 868.60 and 589.24

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Solution

The fourth proportional to 626.48, 868.60 and 589.24 is: 816.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.48 : 868.60 = 589.24 : x
  2. Step 2: Convert to fraction form
    626.48/868.60 = 589.24/x
  3. Step 3: Cross multiply
    626.48x = 868.60 × 589.24
  4. Step 4: Simplify right side
    626.48x = 511,813.86
  5. Step 5: Solve for x
    x = 511,813.86/626.48
  6. Step 6: Final answer
    x = 816.97

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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.