Home / 396,795.78-547,582.13-215,511.25

Finding the Fourth Proportional to 396,795.78, 547,582.13 and 215,511.25

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Solution

The fourth proportional to 396,795.78, 547,582.13 and 215,511.25 is: 297,407.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,795.78 : 547,582.13 = 215,511.25 : x
  2. Step 2: Convert to fraction form
    396,795.78/547,582.13 = 215,511.25/x
  3. Step 3: Cross multiply
    396,795.78x = 547,582.13 × 215,511.25
  4. Step 4: Simplify right side
    396,795.78x = 118,010,109,313.96
  5. Step 5: Solve for x
    x = 118,010,109,313.96/396,795.78
  6. Step 6: Final answer
    x = 297,407.67

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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.