Home / 1,990,821.60-2,747,215.44-1,131,262.56

Finding the Fourth Proportional to 1,990,821.60, 2,747,215.44 and 1,131,262.56

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Solution

The fourth proportional to 1,990,821.60, 2,747,215.44 and 1,131,262.56 is: 1,561,075.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,821.60 : 2,747,215.44 = 1,131,262.56 : x
  2. Step 2: Convert to fraction form
    1,990,821.60/2,747,215.44 = 1,131,262.56/x
  3. Step 3: Cross multiply
    1,990,821.60x = 2,747,215.44 × 1,131,262.56
  4. Step 4: Simplify right side
    1,990,821.60x = 3,107,821,971,525.93
  5. Step 5: Solve for x
    x = 3,107,821,971,525.93/1,990,821.60
  6. Step 6: Final answer
    x = 1,561,075.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.