Home / 396,379.11-546,774.41-252,977.52

Finding the Fourth Proportional to 396,379.11, 546,774.41 and 252,977.52

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Solution

The fourth proportional to 396,379.11, 546,774.41 and 252,977.52 is: 348,962.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,379.11 : 546,774.41 = 252,977.52 : x
  2. Step 2: Convert to fraction form
    396,379.11/546,774.41 = 252,977.52/x
  3. Step 3: Cross multiply
    396,379.11x = 546,774.41 × 252,977.52
  4. Step 4: Simplify right side
    396,379.11x = 138,321,632,976.38
  5. Step 5: Solve for x
    x = 138,321,632,976.38/396,379.11
  6. Step 6: Final answer
    x = 348,962.97

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1.5x scale

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.