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Finding the Fourth Proportional to 444.97, 663.01 and 396.48

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Solution

The fourth proportional to 444.97, 663.01 and 396.48 is: 590.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.97 : 663.01 = 396.48 : x
  2. Step 2: Convert to fraction form
    444.97/663.01 = 396.48/x
  3. Step 3: Cross multiply
    444.97x = 663.01 × 396.48
  4. Step 4: Simplify right side
    444.97x = 262,870.20
  5. Step 5: Solve for x
    x = 262,870.20/444.97
  6. Step 6: Final answer
    x = 590.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.