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Finding the Fourth Proportional to 396,774.28, 595,095.72 and 130,538.08

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Solution

The fourth proportional to 396,774.28, 595,095.72 and 130,538.08 is: 195,785.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,774.28 : 595,095.72 = 130,538.08 : x
  2. Step 2: Convert to fraction form
    396,774.28/595,095.72 = 130,538.08/x
  3. Step 3: Cross multiply
    396,774.28x = 595,095.72 × 130,538.08
  4. Step 4: Simplify right side
    396,774.28x = 77,682,652,705.02
  5. Step 5: Solve for x
    x = 77,682,652,705.02/396,774.28
  6. Step 6: Final answer
    x = 195,785.50

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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.