Home / 322,456.64-443,815.62-283,964.18

Finding the Fourth Proportional to 322,456.64, 443,815.62 and 283,964.18

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Solution

The fourth proportional to 322,456.64, 443,815.62 and 283,964.18 is: 390,836.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,456.64 : 443,815.62 = 283,964.18 : x
  2. Step 2: Convert to fraction form
    322,456.64/443,815.62 = 283,964.18/x
  3. Step 3: Cross multiply
    322,456.64x = 443,815.62 × 283,964.18
  4. Step 4: Simplify right side
    322,456.64x = 126,027,738,604.49
  5. Step 5: Solve for x
    x = 126,027,738,604.49/322,456.64
  6. Step 6: Final answer
    x = 390,836.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.