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Finding the Fourth Proportional to 489.85, 736.31 and 452.94

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Solution

The fourth proportional to 489.85, 736.31 and 452.94 is: 680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    489.85 : 736.31 = 452.94 : x
  2. Step 2: Convert to fraction form
    489.85/736.31 = 452.94/x
  3. Step 3: Cross multiply
    489.85x = 736.31 × 452.94
  4. Step 4: Simplify right side
    489.85x = 333,504.22
  5. Step 5: Solve for x
    x = 333,504.22/489.85
  6. Step 6: Final answer
    x = 680.83

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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.