Home / 1,990,921.64-2,747,705.09-1,131,611.04

Finding the Fourth Proportional to 1,990,921.64, 2,747,705.09 and 1,131,611.04

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Solution

The fourth proportional to 1,990,921.64, 2,747,705.09 and 1,131,611.04 is: 1,561,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,921.64 : 2,747,705.09 = 1,131,611.04 : x
  2. Step 2: Convert to fraction form
    1,990,921.64/2,747,705.09 = 1,131,611.04/x
  3. Step 3: Cross multiply
    1,990,921.64x = 2,747,705.09 × 1,131,611.04
  4. Step 4: Simplify right side
    1,990,921.64x = 3,109,333,408,850.14
  5. Step 5: Solve for x
    x = 3,109,333,408,850.14/1,990,921.64
  6. Step 6: Final answer
    x = 1,561,755.80

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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.