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Finding the Fourth Proportional to 885.26, 1,327.08 and 451.46

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Solution

The fourth proportional to 885.26, 1,327.08 and 451.46 is: 676.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.26 : 1,327.08 = 451.46 : x
  2. Step 2: Convert to fraction form
    885.26/1,327.08 = 451.46/x
  3. Step 3: Cross multiply
    885.26x = 1,327.08 × 451.46
  4. Step 4: Simplify right side
    885.26x = 599,123.54
  5. Step 5: Solve for x
    x = 599,123.54/885.26
  6. Step 6: Final answer
    x = 676.78

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1.5x scale

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.