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Finding the Fourth Proportional to 396,309.76, 594,114.68 and 303,231.04

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Solution

The fourth proportional to 396,309.76, 594,114.68 and 303,231.04 is: 454,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,309.76 : 594,114.68 = 303,231.04 : x
  2. Step 2: Convert to fraction form
    396,309.76/594,114.68 = 303,231.04/x
  3. Step 3: Cross multiply
    396,309.76x = 594,114.68 × 303,231.04
  4. Step 4: Simplify right side
    396,309.76x = 180,154,011,568.46
  5. Step 5: Solve for x
    x = 180,154,011,568.46/396,309.76
  6. Step 6: Final answer
    x = 454,578.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.