Home / 885,413.22-1,321,214.06-789,987.42

Finding the Fourth Proportional to 885,413.22, 1,321,214.06 and 789,987.42

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Solution

The fourth proportional to 885,413.22, 1,321,214.06 and 789,987.42 is: 1,178,819.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,413.22 : 1,321,214.06 = 789,987.42 : x
  2. Step 2: Convert to fraction form
    885,413.22/1,321,214.06 = 789,987.42/x
  3. Step 3: Cross multiply
    885,413.22x = 1,321,214.06 × 789,987.42
  4. Step 4: Simplify right side
    885,413.22x = 1,043,742,486,527.13
  5. Step 5: Solve for x
    x = 1,043,742,486,527.13/885,413.22
  6. Step 6: Final answer
    x = 1,178,819.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.