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Finding the Fourth Proportional to 667.15, 1,001.55 and 444.97

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Solution

The fourth proportional to 667.15, 1,001.55 and 444.97 is: 668.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.15 : 1,001.55 = 444.97 : x
  2. Step 2: Convert to fraction form
    667.15/1,001.55 = 444.97/x
  3. Step 3: Cross multiply
    667.15x = 1,001.55 × 444.97
  4. Step 4: Simplify right side
    667.15x = 445,662.62
  5. Step 5: Solve for x
    x = 445,662.62/667.15
  6. Step 6: Final answer
    x = 668.01

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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.