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Finding the Fourth Proportional to 884.39, 1,326.24 and 336.42

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Solution

The fourth proportional to 884.39, 1,326.24 and 336.42 is: 504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.39 : 1,326.24 = 336.42 : x
  2. Step 2: Convert to fraction form
    884.39/1,326.24 = 336.42/x
  3. Step 3: Cross multiply
    884.39x = 1,326.24 × 336.42
  4. Step 4: Simplify right side
    884.39x = 446,173.66
  5. Step 5: Solve for x
    x = 446,173.66/884.39
  6. Step 6: Final answer
    x = 504.50

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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.