Home / 1,198,860.80-1,798,982.40-451,443.20

Finding the Fourth Proportional to 1,198,860.80, 1,798,982.40 and 451,443.20

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Solution

The fourth proportional to 1,198,860.80, 1,798,982.40 and 451,443.20 is: 677,425.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,860.80 : 1,798,982.40 = 451,443.20 : x
  2. Step 2: Convert to fraction form
    1,198,860.80/1,798,982.40 = 451,443.20/x
  3. Step 3: Cross multiply
    1,198,860.80x = 1,798,982.40 × 451,443.20
  4. Step 4: Simplify right side
    1,198,860.80x = 812,138,371,399.68
  5. Step 5: Solve for x
    x = 812,138,371,399.68/1,198,860.80
  6. Step 6: Final answer
    x = 677,425.08

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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.