Home / 396,756.48-547,522-215,466.84

Finding the Fourth Proportional to 396,756.48, 547,522 and 215,466.84

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Solution

The fourth proportional to 396,756.48, 547,522 and 215,466.84 is: 297,343.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,756.48 : 547,522 = 215,466.84 : x
  2. Step 2: Convert to fraction form
    396,756.48/547,522 = 215,466.84/x
  3. Step 3: Cross multiply
    396,756.48x = 547,522 × 215,466.84
  4. Step 4: Simplify right side
    396,756.48x = 117,972,835,170.48
  5. Step 5: Solve for x
    x = 117,972,835,170.48/396,756.48
  6. Step 6: Final answer
    x = 297,343.18

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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.