Home / 1,332,413.72-1,838,745.37-720,578.37

Finding the Fourth Proportional to 1,332,413.72, 1,838,745.37 and 720,578.37

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Solution

The fourth proportional to 1,332,413.72, 1,838,745.37 and 720,578.37 is: 994,405.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,413.72 : 1,838,745.37 = 720,578.37 : x
  2. Step 2: Convert to fraction form
    1,332,413.72/1,838,745.37 = 720,578.37/x
  3. Step 3: Cross multiply
    1,332,413.72x = 1,838,745.37 × 720,578.37
  4. Step 4: Simplify right side
    1,332,413.72x = 1,324,960,132,365.92
  5. Step 5: Solve for x
    x = 1,324,960,132,365.92/1,332,413.72
  6. Step 6: Final answer
    x = 994,405.95

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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.