Home / 2,138,512.86-3,209,015.88-791,612.46

Finding the Fourth Proportional to 2,138,512.86, 3,209,015.88 and 791,612.46

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Solution

The fourth proportional to 2,138,512.86, 3,209,015.88 and 791,612.46 is: 1,187,880.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,512.86 : 3,209,015.88 = 791,612.46 : x
  2. Step 2: Convert to fraction form
    2,138,512.86/3,209,015.88 = 791,612.46/x
  3. Step 3: Cross multiply
    2,138,512.86x = 3,209,015.88 × 791,612.46
  4. Step 4: Simplify right side
    2,138,512.86x = 2,540,296,954,945.86
  5. Step 5: Solve for x
    x = 2,540,296,954,945.86/2,138,512.86
  6. Step 6: Final answer
    x = 1,187,880.14

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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.