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Finding the Fourth Proportional to 605.67, 908.55 and 441.63

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Solution

The fourth proportional to 605.67, 908.55 and 441.63 is: 662.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.67 : 908.55 = 441.63 : x
  2. Step 2: Convert to fraction form
    605.67/908.55 = 441.63/x
  3. Step 3: Cross multiply
    605.67x = 908.55 × 441.63
  4. Step 4: Simplify right side
    605.67x = 401,242.94
  5. Step 5: Solve for x
    x = 401,242.94/605.67
  6. Step 6: Final answer
    x = 662.48

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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.