Home / 1,320,091.26-1,821,413.70-747,131.43

Finding the Fourth Proportional to 1,320,091.26, 1,821,413.70 and 747,131.43

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Solution

The fourth proportional to 1,320,091.26, 1,821,413.70 and 747,131.43 is: 1,030,864.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,091.26 : 1,821,413.70 = 747,131.43 : x
  2. Step 2: Convert to fraction form
    1,320,091.26/1,821,413.70 = 747,131.43/x
  3. Step 3: Cross multiply
    1,320,091.26x = 1,821,413.70 × 747,131.43
  4. Step 4: Simplify right side
    1,320,091.26x = 1,360,835,422,302.59
  5. Step 5: Solve for x
    x = 1,360,835,422,302.59/1,320,091.26
  6. Step 6: Final answer
    x = 1,030,864.66

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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.