Home / 396,640.96-594,962.16-278,839.36

Finding the Fourth Proportional to 396,640.96, 594,962.16 and 278,839.36

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Solution

The fourth proportional to 396,640.96, 594,962.16 and 278,839.36 is: 418,259.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,640.96 : 594,962.16 = 278,839.36 : x
  2. Step 2: Convert to fraction form
    396,640.96/594,962.16 = 278,839.36/x
  3. Step 3: Cross multiply
    396,640.96x = 594,962.16 × 278,839.36
  4. Step 4: Simplify right side
    396,640.96x = 165,898,867,918.62
  5. Step 5: Solve for x
    x = 165,898,867,918.62/396,640.96
  6. Step 6: Final answer
    x = 418,259.55

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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.