Home / 1,291,843.83-1,782,731.66-718,874.13

Finding the Fourth Proportional to 1,291,843.83, 1,782,731.66 and 718,874.13

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Solution

The fourth proportional to 1,291,843.83, 1,782,731.66 and 718,874.13 is: 992,039.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,843.83 : 1,782,731.66 = 718,874.13 : x
  2. Step 2: Convert to fraction form
    1,291,843.83/1,782,731.66 = 718,874.13/x
  3. Step 3: Cross multiply
    1,291,843.83x = 1,782,731.66 × 718,874.13
  4. Step 4: Simplify right side
    1,291,843.83x = 1,281,559,667,511.59
  5. Step 5: Solve for x
    x = 1,281,559,667,511.59/1,291,843.83
  6. Step 6: Final answer
    x = 992,039.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.