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Finding the Fourth Proportional to 514.92, 711.96 and 450.12

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Solution

The fourth proportional to 514.92, 711.96 and 450.12 is: 622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.92 : 711.96 = 450.12 : x
  2. Step 2: Convert to fraction form
    514.92/711.96 = 450.12/x
  3. Step 3: Cross multiply
    514.92x = 711.96 × 450.12
  4. Step 4: Simplify right side
    514.92x = 320,467.44
  5. Step 5: Solve for x
    x = 320,467.44/514.92
  6. Step 6: Final answer
    x = 622.36

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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.