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Finding the Fourth Proportional to 447.36, 613.34 and 439.14

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Solution

The fourth proportional to 447.36, 613.34 and 439.14 is: 602.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.36 : 613.34 = 439.14 : x
  2. Step 2: Convert to fraction form
    447.36/613.34 = 439.14/x
  3. Step 3: Cross multiply
    447.36x = 613.34 × 439.14
  4. Step 4: Simplify right side
    447.36x = 269,339.93
  5. Step 5: Solve for x
    x = 269,339.93/447.36
  6. Step 6: Final answer
    x = 602.07

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.