Home / 1,620,912.39-2,429,195.27-1,261,517.22

Finding the Fourth Proportional to 1,620,912.39, 2,429,195.27 and 1,261,517.22

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Solution

The fourth proportional to 1,620,912.39, 2,429,195.27 and 1,261,517.22 is: 1,890,584.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,912.39 : 2,429,195.27 = 1,261,517.22 : x
  2. Step 2: Convert to fraction form
    1,620,912.39/2,429,195.27 = 1,261,517.22/x
  3. Step 3: Cross multiply
    1,620,912.39x = 2,429,195.27 × 1,261,517.22
  4. Step 4: Simplify right side
    1,620,912.39x = 3,064,471,657,539.96
  5. Step 5: Solve for x
    x = 3,064,471,657,539.96/1,620,912.39
  6. Step 6: Final answer
    x = 1,890,584.39

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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.