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Finding the Fourth Proportional to 576.42, 863.09 and 450.07

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Solution

The fourth proportional to 576.42, 863.09 and 450.07 is: 673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.42 : 863.09 = 450.07 : x
  2. Step 2: Convert to fraction form
    576.42/863.09 = 450.07/x
  3. Step 3: Cross multiply
    576.42x = 863.09 × 450.07
  4. Step 4: Simplify right side
    576.42x = 388,452.00
  5. Step 5: Solve for x
    x = 388,452.00/576.42
  6. Step 6: Final answer
    x = 673.90

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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.