Home / 2,660,983.20-3,991,474.80-1,313,791.20

Finding the Fourth Proportional to 2,660,983.20, 3,991,474.80 and 1,313,791.20

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Solution

The fourth proportional to 2,660,983.20, 3,991,474.80 and 1,313,791.20 is: 1,970,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,983.20 : 3,991,474.80 = 1,313,791.20 : x
  2. Step 2: Convert to fraction form
    2,660,983.20/3,991,474.80 = 1,313,791.20/x
  3. Step 3: Cross multiply
    2,660,983.20x = 3,991,474.80 × 1,313,791.20
  4. Step 4: Simplify right side
    2,660,983.20x = 5,243,964,467,261.76
  5. Step 5: Solve for x
    x = 5,243,964,467,261.76/2,660,983.20
  6. Step 6: Final answer
    x = 1,970,686.80

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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.