Home / 2,179,978.39-3,265,241.50-1,055,689.75

Finding the Fourth Proportional to 2,179,978.39, 3,265,241.50 and 1,055,689.75

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Solution

The fourth proportional to 2,179,978.39, 3,265,241.50 and 1,055,689.75 is: 1,581,245.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179,978.39 : 3,265,241.50 = 1,055,689.75 : x
  2. Step 2: Convert to fraction form
    2,179,978.39/3,265,241.50 = 1,055,689.75/x
  3. Step 3: Cross multiply
    2,179,978.39x = 3,265,241.50 × 1,055,689.75
  4. Step 4: Simplify right side
    2,179,978.39x = 3,447,081,982,824.63
  5. Step 5: Solve for x
    x = 3,447,081,982,824.63/2,179,978.39
  6. Step 6: Final answer
    x = 1,581,245.94

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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.