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Finding the Fourth Proportional to 451.76, 676.02 and 444.47

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Solution

The fourth proportional to 451.76, 676.02 and 444.47 is: 665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.76 : 676.02 = 444.47 : x
  2. Step 2: Convert to fraction form
    451.76/676.02 = 444.47/x
  3. Step 3: Cross multiply
    451.76x = 676.02 × 444.47
  4. Step 4: Simplify right side
    451.76x = 300,470.61
  5. Step 5: Solve for x
    x = 300,470.61/451.76
  6. Step 6: Final answer
    x = 665.11

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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.