Home / 2,131,587.36-3,199,656.12-917,764.68

Finding the Fourth Proportional to 2,131,587.36, 3,199,656.12 and 917,764.68

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Solution

The fourth proportional to 2,131,587.36, 3,199,656.12 and 917,764.68 is: 1,377,626.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,587.36 : 3,199,656.12 = 917,764.68 : x
  2. Step 2: Convert to fraction form
    2,131,587.36/3,199,656.12 = 917,764.68/x
  3. Step 3: Cross multiply
    2,131,587.36x = 3,199,656.12 × 917,764.68
  4. Step 4: Simplify right side
    2,131,587.36x = 2,936,531,375,081.84
  5. Step 5: Solve for x
    x = 2,936,531,375,081.84/2,131,587.36
  6. Step 6: Final answer
    x = 1,377,626.57

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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.