Home / 396,982.41-546,834.01-320,286.89

Finding the Fourth Proportional to 396,982.41, 546,834.01 and 320,286.89

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Solution

The fourth proportional to 396,982.41, 546,834.01 and 320,286.89 is: 441,187.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,982.41 : 546,834.01 = 320,286.89 : x
  2. Step 2: Convert to fraction form
    396,982.41/546,834.01 = 320,286.89/x
  3. Step 3: Cross multiply
    396,982.41x = 546,834.01 × 320,286.89
  4. Step 4: Simplify right side
    396,982.41x = 175,143,760,874.24
  5. Step 5: Solve for x
    x = 175,143,760,874.24/396,982.41
  6. Step 6: Final answer
    x = 441,187.71

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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.