Home / 2,661,012.80-3,991,519.20-1,821,204.80

Finding the Fourth Proportional to 2,661,012.80, 3,991,519.20 and 1,821,204.80

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Solution

The fourth proportional to 2,661,012.80, 3,991,519.20 and 1,821,204.80 is: 2,731,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,012.80 : 3,991,519.20 = 1,821,204.80 : x
  2. Step 2: Convert to fraction form
    2,661,012.80/3,991,519.20 = 1,821,204.80/x
  3. Step 3: Cross multiply
    2,661,012.80x = 3,991,519.20 × 1,821,204.80
  4. Step 4: Simplify right side
    2,661,012.80x = 7,269,373,926,332.16
  5. Step 5: Solve for x
    x = 7,269,373,926,332.16/2,661,012.80
  6. Step 6: Final answer
    x = 2,731,807.20

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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.