Home / 396,939.90-547,774.74-215,650.38

Finding the Fourth Proportional to 396,939.90, 547,774.74 and 215,650.38

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Solution

The fourth proportional to 396,939.90, 547,774.74 and 215,650.38 is: 297,596.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,939.90 : 547,774.74 = 215,650.38 : x
  2. Step 2: Convert to fraction form
    396,939.90/547,774.74 = 215,650.38/x
  3. Step 3: Cross multiply
    396,939.90x = 547,774.74 × 215,650.38
  4. Step 4: Simplify right side
    396,939.90x = 118,127,830,835.40
  5. Step 5: Solve for x
    x = 118,127,830,835.40/396,939.90
  6. Step 6: Final answer
    x = 297,596.26

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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.