Home / 396,912.15-547,736.58-215,622.63

Finding the Fourth Proportional to 396,912.15, 547,736.58 and 215,622.63

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Solution

The fourth proportional to 396,912.15, 547,736.58 and 215,622.63 is: 297,558.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,912.15 : 547,736.58 = 215,622.63 : x
  2. Step 2: Convert to fraction form
    396,912.15/547,736.58 = 215,622.63/x
  3. Step 3: Cross multiply
    396,912.15x = 547,736.58 × 215,622.63
  4. Step 4: Simplify right side
    396,912.15x = 118,104,401,926.81
  5. Step 5: Solve for x
    x = 118,104,401,926.81/396,912.15
  6. Step 6: Final answer
    x = 297,558.04

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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.