Home / 3,119,647.70-4,679,471.55-2,979,679.70

Finding the Fourth Proportional to 3,119,647.70, 4,679,471.55 and 2,979,679.70

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Solution

The fourth proportional to 3,119,647.70, 4,679,471.55 and 2,979,679.70 is: 4,469,519.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,647.70 : 4,679,471.55 = 2,979,679.70 : x
  2. Step 2: Convert to fraction form
    3,119,647.70/4,679,471.55 = 2,979,679.70/x
  3. Step 3: Cross multiply
    3,119,647.70x = 4,679,471.55 × 2,979,679.70
  4. Step 4: Simplify right side
    3,119,647.70x = 13,943,326,384,262.54
  5. Step 5: Solve for x
    x = 13,943,326,384,262.54/3,119,647.70
  6. Step 6: Final answer
    x = 4,469,519.55

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Double scale
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Similar ratio
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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.