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Finding the Fourth Proportional to 606.78, 908.19 and 444.42

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Solution

The fourth proportional to 606.78, 908.19 and 444.42 is: 665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.78 : 908.19 = 444.42 : x
  2. Step 2: Convert to fraction form
    606.78/908.19 = 444.42/x
  3. Step 3: Cross multiply
    606.78x = 908.19 × 444.42
  4. Step 4: Simplify right side
    606.78x = 403,617.80
  5. Step 5: Solve for x
    x = 403,617.80/606.78
  6. Step 6: Final answer
    x = 665.18

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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.