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Finding the Fourth Proportional to 662.29, 913.74 and 441.27

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Solution

The fourth proportional to 662.29, 913.74 and 441.27 is: 608.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.29 : 913.74 = 441.27 : x
  2. Step 2: Convert to fraction form
    662.29/913.74 = 441.27/x
  3. Step 3: Cross multiply
    662.29x = 913.74 × 441.27
  4. Step 4: Simplify right side
    662.29x = 403,206.05
  5. Step 5: Solve for x
    x = 403,206.05/662.29
  6. Step 6: Final answer
    x = 608.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.