Home / 3,609,634.84-4,981,296.12-1,978,106.41

Finding the Fourth Proportional to 3,609,634.84, 4,981,296.12 and 1,978,106.41

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Solution

The fourth proportional to 3,609,634.84, 4,981,296.12 and 1,978,106.41 is: 2,729,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609,634.84 : 4,981,296.12 = 1,978,106.41 : x
  2. Step 2: Convert to fraction form
    3,609,634.84/4,981,296.12 = 1,978,106.41/x
  3. Step 3: Cross multiply
    3,609,634.84x = 4,981,296.12 × 1,978,106.41
  4. Step 4: Simplify right side
    3,609,634.84x = 9,853,533,775,189.60
  5. Step 5: Solve for x
    x = 9,853,533,775,189.60/3,609,634.84
  6. Step 6: Final answer
    x = 2,729,786.87

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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.