Home / 2,631,720.78-3,947,722.11-834,740.64

Finding the Fourth Proportional to 2,631,720.78, 3,947,722.11 and 834,740.64

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Solution

The fourth proportional to 2,631,720.78, 3,947,722.11 and 834,740.64 is: 1,252,155.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,720.78 : 3,947,722.11 = 834,740.64 : x
  2. Step 2: Convert to fraction form
    2,631,720.78/3,947,722.11 = 834,740.64/x
  3. Step 3: Cross multiply
    2,631,720.78x = 3,947,722.11 × 834,740.64
  4. Step 4: Simplify right side
    2,631,720.78x = 3,295,324,080,643.55
  5. Step 5: Solve for x
    x = 3,295,324,080,643.55/2,631,720.78
  6. Step 6: Final answer
    x = 1,252,155.66

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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.