Home / 2,631,791.20-3,947,816.40-1,372,079.20

Finding the Fourth Proportional to 2,631,791.20, 3,947,816.40 and 1,372,079.20

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Solution

The fourth proportional to 2,631,791.20, 3,947,816.40 and 1,372,079.20 is: 2,058,186.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,791.20 : 3,947,816.40 = 1,372,079.20 : x
  2. Step 2: Convert to fraction form
    2,631,791.20/3,947,816.40 = 1,372,079.20/x
  3. Step 3: Cross multiply
    2,631,791.20x = 3,947,816.40 × 1,372,079.20
  4. Step 4: Simplify right side
    2,631,791.20x = 5,416,716,767,858.88
  5. Step 5: Solve for x
    x = 5,416,716,767,858.88/2,631,791.20
  6. Step 6: Final answer
    x = 2,058,186.37

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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.