Home / 396,990.28-595,438.94-112,705.80

Finding the Fourth Proportional to 396,990.28, 595,438.94 and 112,705.80

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Solution

The fourth proportional to 396,990.28, 595,438.94 and 112,705.80 is: 169,045.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,990.28 : 595,438.94 = 112,705.80 : x
  2. Step 2: Convert to fraction form
    396,990.28/595,438.94 = 112,705.80/x
  3. Step 3: Cross multiply
    396,990.28x = 595,438.94 × 112,705.80
  4. Step 4: Simplify right side
    396,990.28x = 67,109,422,083.85
  5. Step 5: Solve for x
    x = 67,109,422,083.85/396,990.28
  6. Step 6: Final answer
    x = 169,045.50

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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.