Home / 1,758,065.80-2,629,904.68-1,328,407.78

Finding the Fourth Proportional to 1,758,065.80, 2,629,904.68 and 1,328,407.78

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Solution

The fourth proportional to 1,758,065.80, 2,629,904.68 and 1,328,407.78 is: 1,987,175.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758,065.80 : 2,629,904.68 = 1,328,407.78 : x
  2. Step 2: Convert to fraction form
    1,758,065.80/2,629,904.68 = 1,328,407.78/x
  3. Step 3: Cross multiply
    1,758,065.80x = 2,629,904.68 × 1,328,407.78
  4. Step 4: Simplify right side
    1,758,065.80x = 3,493,585,837,570.41
  5. Step 5: Solve for x
    x = 3,493,585,837,570.41/1,758,065.80
  6. Step 6: Final answer
    x = 1,987,175.81

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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.