Home / 1,989,701.11-2,743,836.87-1,263,287.71

Finding the Fourth Proportional to 1,989,701.11, 2,743,836.87 and 1,263,287.71

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Solution

The fourth proportional to 1,989,701.11, 2,743,836.87 and 1,263,287.71 is: 1,742,098.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,701.11 : 2,743,836.87 = 1,263,287.71 : x
  2. Step 2: Convert to fraction form
    1,989,701.11/2,743,836.87 = 1,263,287.71/x
  3. Step 3: Cross multiply
    1,989,701.11x = 2,743,836.87 × 1,263,287.71
  4. Step 4: Simplify right side
    1,989,701.11x = 3,466,255,396,115.87
  5. Step 5: Solve for x
    x = 3,466,255,396,115.87/1,989,701.11
  6. Step 6: Final answer
    x = 1,742,098.54

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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.