Home / 2,081,942.80-3,122,914.20-1,242,134.80

Finding the Fourth Proportional to 2,081,942.80, 3,122,914.20 and 1,242,134.80

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Solution

The fourth proportional to 2,081,942.80, 3,122,914.20 and 1,242,134.80 is: 1,863,202.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081,942.80 : 3,122,914.20 = 1,242,134.80 : x
  2. Step 2: Convert to fraction form
    2,081,942.80/3,122,914.20 = 1,242,134.80/x
  3. Step 3: Cross multiply
    2,081,942.80x = 3,122,914.20 × 1,242,134.80
  4. Step 4: Simplify right side
    2,081,942.80x = 3,879,080,405,234.16
  5. Step 5: Solve for x
    x = 3,879,080,405,234.16/2,081,942.80
  6. Step 6: Final answer
    x = 1,863,202.20

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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.