Home / 3,980,809.28-5,961,839.88-2,629,620.54

Finding the Fourth Proportional to 3,980,809.28, 5,961,839.88 and 2,629,620.54

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Solution

The fourth proportional to 3,980,809.28, 5,961,839.88 and 2,629,620.54 is: 3,938,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980,809.28 : 5,961,839.88 = 2,629,620.54 : x
  2. Step 2: Convert to fraction form
    3,980,809.28/5,961,839.88 = 2,629,620.54/x
  3. Step 3: Cross multiply
    3,980,809.28x = 5,961,839.88 × 2,629,620.54
  4. Step 4: Simplify right side
    3,980,809.28x = 15,677,376,604,639.13
  5. Step 5: Solve for x
    x = 15,677,376,604,639.13/3,980,809.28
  6. Step 6: Final answer
    x = 3,938,238.56

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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.