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Finding the Fourth Proportional to 518.24, 773.56 and 450.24

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Solution

The fourth proportional to 518.24, 773.56 and 450.24 is: 672.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    518.24 : 773.56 = 450.24 : x
  2. Step 2: Convert to fraction form
    518.24/773.56 = 450.24/x
  3. Step 3: Cross multiply
    518.24x = 773.56 × 450.24
  4. Step 4: Simplify right side
    518.24x = 348,287.65
  5. Step 5: Solve for x
    x = 348,287.65/518.24
  6. Step 6: Final answer
    x = 672.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.