Home / 3,138,781.69-4,331,371.12-1,743,433.77

Finding the Fourth Proportional to 3,138,781.69, 4,331,371.12 and 1,743,433.77

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Solution

The fourth proportional to 3,138,781.69, 4,331,371.12 and 1,743,433.77 is: 2,405,856.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,781.69 : 4,331,371.12 = 1,743,433.77 : x
  2. Step 2: Convert to fraction form
    3,138,781.69/4,331,371.12 = 1,743,433.77/x
  3. Step 3: Cross multiply
    3,138,781.69x = 4,331,371.12 × 1,743,433.77
  4. Step 4: Simplify right side
    3,138,781.69x = 7,551,458,692,894.78
  5. Step 5: Solve for x
    x = 7,551,458,692,894.78/3,138,781.69
  6. Step 6: Final answer
    x = 2,405,856.61

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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.