Home / 2,831,512.11-4,247,512.82-782,171.95

Finding the Fourth Proportional to 2,831,512.11, 4,247,512.82 and 782,171.95

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Solution

The fourth proportional to 2,831,512.11, 4,247,512.82 and 782,171.95 is: 1,173,325.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831,512.11 : 4,247,512.82 = 782,171.95 : x
  2. Step 2: Convert to fraction form
    2,831,512.11/4,247,512.82 = 782,171.95/x
  3. Step 3: Cross multiply
    2,831,512.11x = 4,247,512.82 × 782,171.95
  4. Step 4: Simplify right side
    2,831,512.11x = 3,322,285,384,370.13
  5. Step 5: Solve for x
    x = 3,322,285,384,370.13/2,831,512.11
  6. Step 6: Final answer
    x = 1,173,325.51

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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.