Home / 396,983.41-546,835.38-320,287.89

Finding the Fourth Proportional to 396,983.41, 546,835.38 and 320,287.89

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Solution

The fourth proportional to 396,983.41, 546,835.38 and 320,287.89 is: 441,189.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,983.41 : 546,835.38 = 320,287.89 : x
  2. Step 2: Convert to fraction form
    396,983.41/546,835.38 = 320,287.89/x
  3. Step 3: Cross multiply
    396,983.41x = 546,835.38 × 320,287.89
  4. Step 4: Simplify right side
    396,983.41x = 175,144,750,037.55
  5. Step 5: Solve for x
    x = 175,144,750,037.55/396,983.41
  6. Step 6: Final answer
    x = 441,189.09

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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.