Home / 1,891,093.57-2,821,890.67-1,687,288.55

Finding the Fourth Proportional to 1,891,093.57, 2,821,890.67 and 1,687,288.55

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Solution

The fourth proportional to 1,891,093.57, 2,821,890.67 and 1,687,288.55 is: 2,517,772.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,093.57 : 2,821,890.67 = 1,687,288.55 : x
  2. Step 2: Convert to fraction form
    1,891,093.57/2,821,890.67 = 1,687,288.55/x
  3. Step 3: Cross multiply
    1,891,093.57x = 2,821,890.67 × 1,687,288.55
  4. Step 4: Simplify right side
    1,891,093.57x = 4,761,343,798,515.15
  5. Step 5: Solve for x
    x = 4,761,343,798,515.15/1,891,093.57
  6. Step 6: Final answer
    x = 2,517,772.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.