Home / 1,991,768.43-2,990,642.01-1,139,802.08

Finding the Fourth Proportional to 1,991,768.43, 2,990,642.01 and 1,139,802.08

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Solution

The fourth proportional to 1,991,768.43, 2,990,642.01 and 1,139,802.08 is: 1,711,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,768.43 : 2,990,642.01 = 1,139,802.08 : x
  2. Step 2: Convert to fraction form
    1,991,768.43/2,990,642.01 = 1,139,802.08/x
  3. Step 3: Cross multiply
    1,991,768.43x = 2,990,642.01 × 1,139,802.08
  4. Step 4: Simplify right side
    1,991,768.43x = 3,408,739,981,128.27
  5. Step 5: Solve for x
    x = 3,408,739,981,128.27/1,991,768.43
  6. Step 6: Final answer
    x = 1,711,413.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.