Home / 2,618,896.52-3,928,510.80-821,850.84

Finding the Fourth Proportional to 2,618,896.52, 3,928,510.80 and 821,850.84

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Solution

The fourth proportional to 2,618,896.52, 3,928,510.80 and 821,850.84 is: 1,232,828.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,896.52 : 3,928,510.80 = 821,850.84 : x
  2. Step 2: Convert to fraction form
    2,618,896.52/3,928,510.80 = 821,850.84/x
  3. Step 3: Cross multiply
    2,618,896.52x = 3,928,510.80 × 821,850.84
  4. Step 4: Simplify right side
    2,618,896.52x = 3,228,649,900,929.07
  5. Step 5: Solve for x
    x = 3,228,649,900,929.07/2,618,896.52
  6. Step 6: Final answer
    x = 1,232,828.36

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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.