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Finding the Fourth Proportional to 396,845, 595,353.72 and 130,632.56

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Solution

The fourth proportional to 396,845, 595,353.72 and 130,632.56 is: 195,977.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,845 : 595,353.72 = 130,632.56 : x
  2. Step 2: Convert to fraction form
    396,845/595,353.72 = 130,632.56/x
  3. Step 3: Cross multiply
    396,845x = 595,353.72 × 130,632.56
  4. Step 4: Simplify right side
    396,845x = 77,772,580,549.12
  5. Step 5: Solve for x
    x = 77,772,580,549.12/396,845
  6. Step 6: Final answer
    x = 195,977.22

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1.5x scale

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.