Home / 396,911.90-547,736.23-215,622.38

Finding the Fourth Proportional to 396,911.90, 547,736.23 and 215,622.38

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Solution

The fourth proportional to 396,911.90, 547,736.23 and 215,622.38 is: 297,557.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,911.90 : 547,736.23 = 215,622.38 : x
  2. Step 2: Convert to fraction form
    396,911.90/547,736.23 = 215,622.38/x
  3. Step 3: Cross multiply
    396,911.90x = 547,736.23 × 215,622.38
  4. Step 4: Simplify right side
    396,911.90x = 118,104,189,524.83
  5. Step 5: Solve for x
    x = 118,104,189,524.83/396,911.90
  6. Step 6: Final answer
    x = 297,557.69

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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.