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Finding the Fourth Proportional to 486.35, 732.59 and 443.29

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Solution

The fourth proportional to 486.35, 732.59 and 443.29 is: 667.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.35 : 732.59 = 443.29 : x
  2. Step 2: Convert to fraction form
    486.35/732.59 = 443.29/x
  3. Step 3: Cross multiply
    486.35x = 732.59 × 443.29
  4. Step 4: Simplify right side
    486.35x = 324,749.82
  5. Step 5: Solve for x
    x = 324,749.82/486.35
  6. Step 6: Final answer
    x = 667.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.