Home / 3,489,942.80-5,235,259.80-1,215,117.20

Finding the Fourth Proportional to 3,489,942.80, 5,235,259.80 and 1,215,117.20

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Solution

The fourth proportional to 3,489,942.80, 5,235,259.80 and 1,215,117.20 is: 1,822,796.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489,942.80 : 5,235,259.80 = 1,215,117.20 : x
  2. Step 2: Convert to fraction form
    3,489,942.80/5,235,259.80 = 1,215,117.20/x
  3. Step 3: Cross multiply
    3,489,942.80x = 5,235,259.80 × 1,215,117.20
  4. Step 4: Simplify right side
    3,489,942.80x = 6,361,454,229,448.56
  5. Step 5: Solve for x
    x = 6,361,454,229,448.56/3,489,942.80
  6. Step 6: Final answer
    x = 1,822,796.13

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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.