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Finding the Fourth Proportional to 662.46, 994.02 and 443.24

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Solution

The fourth proportional to 662.46, 994.02 and 443.24 is: 665.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.46 : 994.02 = 443.24 : x
  2. Step 2: Convert to fraction form
    662.46/994.02 = 443.24/x
  3. Step 3: Cross multiply
    662.46x = 994.02 × 443.24
  4. Step 4: Simplify right side
    662.46x = 440,589.42
  5. Step 5: Solve for x
    x = 440,589.42/662.46
  6. Step 6: Final answer
    x = 665.08

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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.