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Finding the Fourth Proportional to 522.44, 720.88 and 326.04

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Solution

The fourth proportional to 522.44, 720.88 and 326.04 is: 449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.44 : 720.88 = 326.04 : x
  2. Step 2: Convert to fraction form
    522.44/720.88 = 326.04/x
  3. Step 3: Cross multiply
    522.44x = 720.88 × 326.04
  4. Step 4: Simplify right side
    522.44x = 235,035.72
  5. Step 5: Solve for x
    x = 235,035.72/522.44
  6. Step 6: Final answer
    x = 449.88

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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.