Home / 1,989,692.19-2,743,824.60-1,263,278.77

Finding the Fourth Proportional to 1,989,692.19, 2,743,824.60 and 1,263,278.77

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Solution

The fourth proportional to 1,989,692.19, 2,743,824.60 and 1,263,278.77 is: 1,742,086.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,692.19 : 2,743,824.60 = 1,263,278.77 : x
  2. Step 2: Convert to fraction form
    1,989,692.19/2,743,824.60 = 1,263,278.77/x
  3. Step 3: Cross multiply
    1,989,692.19x = 2,743,824.60 × 1,263,278.77
  4. Step 4: Simplify right side
    1,989,692.19x = 3,466,215,352,064.62
  5. Step 5: Solve for x
    x = 3,466,215,352,064.62/1,989,692.19
  6. Step 6: Final answer
    x = 1,742,086.23

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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.