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Finding the Fourth Proportional to 608.67, 913.41 and 441.81

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Solution

The fourth proportional to 608.67, 913.41 and 441.81 is: 663.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.67 : 913.41 = 441.81 : x
  2. Step 2: Convert to fraction form
    608.67/913.41 = 441.81/x
  3. Step 3: Cross multiply
    608.67x = 913.41 × 441.81
  4. Step 4: Simplify right side
    608.67x = 403,553.67
  5. Step 5: Solve for x
    x = 403,553.67/608.67
  6. Step 6: Final answer
    x = 663.01

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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.