Home / 1,995,057.91-2,993,007.42-647,115.65

Finding the Fourth Proportional to 1,995,057.91, 2,993,007.42 and 647,115.65

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Solution

The fourth proportional to 1,995,057.91, 2,993,007.42 and 647,115.65 is: 970,809.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995,057.91 : 2,993,007.42 = 647,115.65 : x
  2. Step 2: Convert to fraction form
    1,995,057.91/2,993,007.42 = 647,115.65/x
  3. Step 3: Cross multiply
    1,995,057.91x = 2,993,007.42 × 647,115.65
  4. Step 4: Simplify right side
    1,995,057.91x = 1,936,821,923,847.51
  5. Step 5: Solve for x
    x = 1,936,821,923,847.51/1,995,057.91
  6. Step 6: Final answer
    x = 970,809.88

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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.