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Finding the Fourth Proportional to 884.20, 1,326.36 and 450.88

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Solution

The fourth proportional to 884.20, 1,326.36 and 450.88 is: 676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.20 : 1,326.36 = 450.88 : x
  2. Step 2: Convert to fraction form
    884.20/1,326.36 = 450.88/x
  3. Step 3: Cross multiply
    884.20x = 1,326.36 × 450.88
  4. Step 4: Simplify right side
    884.20x = 598,029.20
  5. Step 5: Solve for x
    x = 598,029.20/884.20
  6. Step 6: Final answer
    x = 676.35

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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.