Home / 1,990,814.10-2,747,205.09-1,131,255.06

Finding the Fourth Proportional to 1,990,814.10, 2,747,205.09 and 1,131,255.06

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Solution

The fourth proportional to 1,990,814.10, 2,747,205.09 and 1,131,255.06 is: 1,561,064.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,814.10 : 2,747,205.09 = 1,131,255.06 : x
  2. Step 2: Convert to fraction form
    1,990,814.10/2,747,205.09 = 1,131,255.06/x
  3. Step 3: Cross multiply
    1,990,814.10x = 2,747,205.09 × 1,131,255.06
  4. Step 4: Simplify right side
    1,990,814.10x = 3,107,789,658,920.26
  5. Step 5: Solve for x
    x = 3,107,789,658,920.26/1,990,814.10
  6. Step 6: Final answer
    x = 1,561,064.72

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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.