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Finding the Fourth Proportional to 884.83, 1,327.38 and 398.29

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Solution

The fourth proportional to 884.83, 1,327.38 and 398.29 is: 597.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.83 : 1,327.38 = 398.29 : x
  2. Step 2: Convert to fraction form
    884.83/1,327.38 = 398.29/x
  3. Step 3: Cross multiply
    884.83x = 1,327.38 × 398.29
  4. Step 4: Simplify right side
    884.83x = 528,682.18
  5. Step 5: Solve for x
    x = 528,682.18/884.83
  6. Step 6: Final answer
    x = 597.50

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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.