Home / 1,409,737.87-1,945,413.86-765,144.23

Finding the Fourth Proportional to 1,409,737.87, 1,945,413.86 and 765,144.23

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Solution

The fourth proportional to 1,409,737.87, 1,945,413.86 and 765,144.23 is: 1,055,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,737.87 : 1,945,413.86 = 765,144.23 : x
  2. Step 2: Convert to fraction form
    1,409,737.87/1,945,413.86 = 765,144.23/x
  3. Step 3: Cross multiply
    1,409,737.87x = 1,945,413.86 × 765,144.23
  4. Step 4: Simplify right side
    1,409,737.87x = 1,488,522,176,388.24
  5. Step 5: Solve for x
    x = 1,488,522,176,388.24/1,409,737.87
  6. Step 6: Final answer
    x = 1,055,885.78

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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.