Home / 1,787,321.80-2,680,982.70-1,040,825.80

Finding the Fourth Proportional to 1,787,321.80, 2,680,982.70 and 1,040,825.80

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Solution

The fourth proportional to 1,787,321.80, 2,680,982.70 and 1,040,825.80 is: 1,561,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,321.80 : 2,680,982.70 = 1,040,825.80 : x
  2. Step 2: Convert to fraction form
    1,787,321.80/2,680,982.70 = 1,040,825.80/x
  3. Step 3: Cross multiply
    1,787,321.80x = 2,680,982.70 × 1,040,825.80
  4. Step 4: Simplify right side
    1,787,321.80x = 2,790,435,963,513.66
  5. Step 5: Solve for x
    x = 2,790,435,963,513.66/1,787,321.80
  6. Step 6: Final answer
    x = 1,561,238.70

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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.