Home / 396,780.30-595,209.69-130,432.86

Finding the Fourth Proportional to 396,780.30, 595,209.69 and 130,432.86

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Solution

The fourth proportional to 396,780.30, 595,209.69 and 130,432.86 is: 195,662.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,780.30 : 595,209.69 = 130,432.86 : x
  2. Step 2: Convert to fraction form
    396,780.30/595,209.69 = 130,432.86/x
  3. Step 3: Cross multiply
    396,780.30x = 595,209.69 × 130,432.86
  4. Step 4: Simplify right side
    396,780.30x = 77,634,902,166.41
  5. Step 5: Solve for x
    x = 77,634,902,166.41/396,780.30
  6. Step 6: Final answer
    x = 195,662.19

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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.