Home / 1,200,355.11-1,792,866.74-1,086,328.17

Finding the Fourth Proportional to 1,200,355.11, 1,792,866.74 and 1,086,328.17

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Solution

The fourth proportional to 1,200,355.11, 1,792,866.74 and 1,086,328.17 is: 1,622,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,355.11 : 1,792,866.74 = 1,086,328.17 : x
  2. Step 2: Convert to fraction form
    1,200,355.11/1,792,866.74 = 1,086,328.17/x
  3. Step 3: Cross multiply
    1,200,355.11x = 1,792,866.74 × 1,086,328.17
  4. Step 4: Simplify right side
    1,200,355.11x = 1,947,641,644,718.07
  5. Step 5: Solve for x
    x = 1,947,641,644,718.07/1,200,355.11
  6. Step 6: Final answer
    x = 1,622,554.55

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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.