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Finding the Fourth Proportional to 396,718.56, 595,049.04 and 130,476

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Solution

The fourth proportional to 396,718.56, 595,049.04 and 130,476 is: 195,704.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,718.56 : 595,049.04 = 130,476 : x
  2. Step 2: Convert to fraction form
    396,718.56/595,049.04 = 130,476/x
  3. Step 3: Cross multiply
    396,718.56x = 595,049.04 × 130,476
  4. Step 4: Simplify right side
    396,718.56x = 77,639,618,543.04
  5. Step 5: Solve for x
    x = 77,639,618,543.04/396,718.56
  6. Step 6: Final answer
    x = 195,704.53

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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.