Home / 1,296,969.26-1,789,847.75-813,554.78

Finding the Fourth Proportional to 1,296,969.26, 1,789,847.75 and 813,554.78

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Solution

The fourth proportional to 1,296,969.26, 1,789,847.75 and 813,554.78 is: 1,122,724.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,969.26 : 1,789,847.75 = 813,554.78 : x
  2. Step 2: Convert to fraction form
    1,296,969.26/1,789,847.75 = 813,554.78/x
  3. Step 3: Cross multiply
    1,296,969.26x = 1,789,847.75 × 813,554.78
  4. Step 4: Simplify right side
    1,296,969.26x = 1,456,139,185,569.39
  5. Step 5: Solve for x
    x = 1,456,139,185,569.39/1,296,969.26
  6. Step 6: Final answer
    x = 1,122,724.52

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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.