Home / 1,412,917.82-1,949,877.78-809,422.46

Finding the Fourth Proportional to 1,412,917.82, 1,949,877.78 and 809,422.46

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Solution

The fourth proportional to 1,412,917.82, 1,949,877.78 and 809,422.46 is: 1,117,032.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,917.82 : 1,949,877.78 = 809,422.46 : x
  2. Step 2: Convert to fraction form
    1,412,917.82/1,949,877.78 = 809,422.46/x
  3. Step 3: Cross multiply
    1,412,917.82x = 1,949,877.78 × 809,422.46
  4. Step 4: Simplify right side
    1,412,917.82x = 1,578,274,869,386.94
  5. Step 5: Solve for x
    x = 1,578,274,869,386.94/1,412,917.82
  6. Step 6: Final answer
    x = 1,117,032.32

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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.