Home / 2,086,685.80-3,128,279.10-1,089,413.80

Finding the Fourth Proportional to 2,086,685.80, 3,128,279.10 and 1,089,413.80

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Solution

The fourth proportional to 2,086,685.80, 3,128,279.10 and 1,089,413.80 is: 1,633,207.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086,685.80 : 3,128,279.10 = 1,089,413.80 : x
  2. Step 2: Convert to fraction form
    2,086,685.80/3,128,279.10 = 1,089,413.80/x
  3. Step 3: Cross multiply
    2,086,685.80x = 3,128,279.10 × 1,089,413.80
  4. Step 4: Simplify right side
    2,086,685.80x = 3,407,990,421,791.58
  5. Step 5: Solve for x
    x = 3,407,990,421,791.58/2,086,685.80
  6. Step 6: Final answer
    x = 1,633,207.27

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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.