Home / 1,961,149.65-2,940,039.69-681,590.89

Finding the Fourth Proportional to 1,961,149.65, 2,940,039.69 and 681,590.89

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Solution

The fourth proportional to 1,961,149.65, 2,940,039.69 and 681,590.89 is: 1,021,800.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,149.65 : 2,940,039.69 = 681,590.89 : x
  2. Step 2: Convert to fraction form
    1,961,149.65/2,940,039.69 = 681,590.89/x
  3. Step 3: Cross multiply
    1,961,149.65x = 2,940,039.69 × 681,590.89
  4. Step 4: Simplify right side
    1,961,149.65x = 2,003,904,268,942.42
  5. Step 5: Solve for x
    x = 2,003,904,268,942.42/1,961,149.65
  6. Step 6: Final answer
    x = 1,021,800.79

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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.