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Finding the Fourth Proportional to 579.23, 868.08 and 441.86

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Solution

The fourth proportional to 579.23, 868.08 and 441.86 is: 662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.23 : 868.08 = 441.86 : x
  2. Step 2: Convert to fraction form
    579.23/868.08 = 441.86/x
  3. Step 3: Cross multiply
    579.23x = 868.08 × 441.86
  4. Step 4: Simplify right side
    579.23x = 383,569.83
  5. Step 5: Solve for x
    x = 383,569.83/579.23
  6. Step 6: Final answer
    x = 662.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.