Home / 396,411.04-547,047.57-215,122.96

Finding the Fourth Proportional to 396,411.04, 547,047.57 and 215,122.96

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Solution

The fourth proportional to 396,411.04, 547,047.57 and 215,122.96 is: 296,869.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,411.04 : 547,047.57 = 215,122.96 : x
  2. Step 2: Convert to fraction form
    396,411.04/547,047.57 = 215,122.96/x
  3. Step 3: Cross multiply
    396,411.04x = 547,047.57 × 215,122.96
  4. Step 4: Simplify right side
    396,411.04x = 117,682,492,519.21
  5. Step 5: Solve for x
    x = 117,682,492,519.21/396,411.04
  6. Step 6: Final answer
    x = 296,869.87

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1.5x scale

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.