Home / 1,905,661.44-2,859,677.28-1,187,413.20

Finding the Fourth Proportional to 1,905,661.44, 2,859,677.28 and 1,187,413.20

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Solution

The fourth proportional to 1,905,661.44, 2,859,677.28 and 1,187,413.20 is: 1,781,858.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905,661.44 : 2,859,677.28 = 1,187,413.20 : x
  2. Step 2: Convert to fraction form
    1,905,661.44/2,859,677.28 = 1,187,413.20/x
  3. Step 3: Cross multiply
    1,905,661.44x = 2,859,677.28 × 1,187,413.20
  4. Step 4: Simplify right side
    1,905,661.44x = 3,395,618,550,012.10
  5. Step 5: Solve for x
    x = 3,395,618,550,012.10/1,905,661.44
  6. Step 6: Final answer
    x = 1,781,858.25

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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.