Home / 1,887,186.30-2,830,719.24-1,123,919.61

Finding the Fourth Proportional to 1,887,186.30, 2,830,719.24 and 1,123,919.61

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Solution

The fourth proportional to 1,887,186.30, 2,830,719.24 and 1,123,919.61 is: 1,685,843.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887,186.30 : 2,830,719.24 = 1,123,919.61 : x
  2. Step 2: Convert to fraction form
    1,887,186.30/2,830,719.24 = 1,123,919.61/x
  3. Step 3: Cross multiply
    1,887,186.30x = 2,830,719.24 × 1,123,919.61
  4. Step 4: Simplify right side
    1,887,186.30x = 3,181,500,864,240.30
  5. Step 5: Solve for x
    x = 3,181,500,864,240.30/1,887,186.30
  6. Step 6: Final answer
    x = 1,685,843.56

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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.