Home / 1,969,381-2,716,396.14-1,205,811.64

Finding the Fourth Proportional to 1,969,381, 2,716,396.14 and 1,205,811.64

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Solution

The fourth proportional to 1,969,381, 2,716,396.14 and 1,205,811.64 is: 1,663,193.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969,381 : 2,716,396.14 = 1,205,811.64 : x
  2. Step 2: Convert to fraction form
    1,969,381/2,716,396.14 = 1,205,811.64/x
  3. Step 3: Cross multiply
    1,969,381x = 2,716,396.14 × 1,205,811.64
  4. Step 4: Simplify right side
    1,969,381x = 3,275,462,084,463.07
  5. Step 5: Solve for x
    x = 3,275,462,084,463.07/1,969,381
  6. Step 6: Final answer
    x = 1,663,193.71

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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.