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Finding the Fourth Proportional to 447.56, 672.60 and 444.80

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Solution

The fourth proportional to 447.56, 672.60 and 444.80 is: 668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.56 : 672.60 = 444.80 : x
  2. Step 2: Convert to fraction form
    447.56/672.60 = 444.80/x
  3. Step 3: Cross multiply
    447.56x = 672.60 × 444.80
  4. Step 4: Simplify right side
    447.56x = 299,172.48
  5. Step 5: Solve for x
    x = 299,172.48/447.56
  6. Step 6: Final answer
    x = 668.45

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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.