Home / 1,371,040.83-1,891,810.76-861,380.19

Finding the Fourth Proportional to 1,371,040.83, 1,891,810.76 and 861,380.19

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Solution

The fourth proportional to 1,371,040.83, 1,891,810.76 and 861,380.19 is: 1,188,562.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,040.83 : 1,891,810.76 = 861,380.19 : x
  2. Step 2: Convert to fraction form
    1,371,040.83/1,891,810.76 = 861,380.19/x
  3. Step 3: Cross multiply
    1,371,040.83x = 1,891,810.76 × 861,380.19
  4. Step 4: Simplify right side
    1,371,040.83x = 1,629,568,307,585.94
  5. Step 5: Solve for x
    x = 1,629,568,307,585.94/1,371,040.83
  6. Step 6: Final answer
    x = 1,188,562.93

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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.