Home / 2,198,710.80-3,298,066.20-1,978,261.20

Finding the Fourth Proportional to 2,198,710.80, 3,298,066.20 and 1,978,261.20

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Solution

The fourth proportional to 2,198,710.80, 3,298,066.20 and 1,978,261.20 is: 2,967,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198,710.80 : 3,298,066.20 = 1,978,261.20 : x
  2. Step 2: Convert to fraction form
    2,198,710.80/3,298,066.20 = 1,978,261.20/x
  3. Step 3: Cross multiply
    2,198,710.80x = 3,298,066.20 × 1,978,261.20
  4. Step 4: Simplify right side
    2,198,710.80x = 6,524,436,398,491.44
  5. Step 5: Solve for x
    x = 6,524,436,398,491.44/2,198,710.80
  6. Step 6: Final answer
    x = 2,967,391.80

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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.