Home / 1,381,886.19-1,907,413.52-872,927.55

Finding the Fourth Proportional to 1,381,886.19, 1,907,413.52 and 872,927.55

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Solution

The fourth proportional to 1,381,886.19, 1,907,413.52 and 872,927.55 is: 1,204,899.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,886.19 : 1,907,413.52 = 872,927.55 : x
  2. Step 2: Convert to fraction form
    1,381,886.19/1,907,413.52 = 872,927.55/x
  3. Step 3: Cross multiply
    1,381,886.19x = 1,907,413.52 × 872,927.55
  4. Step 4: Simplify right side
    1,381,886.19x = 1,665,033,806,485.84
  5. Step 5: Solve for x
    x = 1,665,033,806,485.84/1,381,886.19
  6. Step 6: Final answer
    x = 1,204,899.37

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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.