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Finding the Fourth Proportional to 396,965.80, 595,448.70 and 302,487.40

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Solution

The fourth proportional to 396,965.80, 595,448.70 and 302,487.40 is: 453,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,965.80 : 595,448.70 = 302,487.40 : x
  2. Step 2: Convert to fraction form
    396,965.80/595,448.70 = 302,487.40/x
  3. Step 3: Cross multiply
    396,965.80x = 595,448.70 × 302,487.40
  4. Step 4: Simplify right side
    396,965.80x = 180,115,729,096.38
  5. Step 5: Solve for x
    x = 180,115,729,096.38/396,965.80
  6. Step 6: Final answer
    x = 453,731.10

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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.