Home / 396,949.30-547,787.08-215,662.72

Finding the Fourth Proportional to 396,949.30, 547,787.08 and 215,662.72

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Solution

The fourth proportional to 396,949.30, 547,787.08 and 215,662.72 is: 297,612.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,949.30 : 547,787.08 = 215,662.72 : x
  2. Step 2: Convert to fraction form
    396,949.30/547,787.08 = 215,662.72/x
  3. Step 3: Cross multiply
    396,949.30x = 547,787.08 × 215,662.72
  4. Step 4: Simplify right side
    396,949.30x = 118,137,248,663.34
  5. Step 5: Solve for x
    x = 118,137,248,663.34/396,949.30
  6. Step 6: Final answer
    x = 297,612.94

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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.