Home / 396,795.72-547,582.05-215,511.19

Finding the Fourth Proportional to 396,795.72, 547,582.05 and 215,511.19

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Solution

The fourth proportional to 396,795.72, 547,582.05 and 215,511.19 is: 297,407.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,795.72 : 547,582.05 = 215,511.19 : x
  2. Step 2: Convert to fraction form
    396,795.72/547,582.05 = 215,511.19/x
  3. Step 3: Cross multiply
    396,795.72x = 547,582.05 × 215,511.19
  4. Step 4: Simplify right side
    396,795.72x = 118,010,059,218.14
  5. Step 5: Solve for x
    x = 118,010,059,218.14/396,795.72
  6. Step 6: Final answer
    x = 297,407.59

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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.