Home / 2,640,904.11-3,642,958.26-1,538,205.55

Finding the Fourth Proportional to 2,640,904.11, 3,642,958.26 and 1,538,205.55

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Solution

The fourth proportional to 2,640,904.11, 3,642,958.26 and 1,538,205.55 is: 2,121,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,904.11 : 3,642,958.26 = 1,538,205.55 : x
  2. Step 2: Convert to fraction form
    2,640,904.11/3,642,958.26 = 1,538,205.55/x
  3. Step 3: Cross multiply
    2,640,904.11x = 3,642,958.26 × 1,538,205.55
  4. Step 4: Simplify right side
    2,640,904.11x = 5,603,618,604,842.95
  5. Step 5: Solve for x
    x = 5,603,618,604,842.95/2,640,904.11
  6. Step 6: Final answer
    x = 2,121,856.14

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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.