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Finding the Fourth Proportional to 531.75, 796.41 and 449.94

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Solution

The fourth proportional to 531.75, 796.41 and 449.94 is: 673.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.75 : 796.41 = 449.94 : x
  2. Step 2: Convert to fraction form
    531.75/796.41 = 449.94/x
  3. Step 3: Cross multiply
    531.75x = 796.41 × 449.94
  4. Step 4: Simplify right side
    531.75x = 358,336.72
  5. Step 5: Solve for x
    x = 358,336.72/531.75
  6. Step 6: Final answer
    x = 673.88

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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.