Home / 3,878,821.73-5,814,240.43-1,720,863.11

Finding the Fourth Proportional to 3,878,821.73, 5,814,240.43 and 1,720,863.11

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Solution

The fourth proportional to 3,878,821.73, 5,814,240.43 and 1,720,863.11 is: 2,579,523.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,821.73 : 5,814,240.43 = 1,720,863.11 : x
  2. Step 2: Convert to fraction form
    3,878,821.73/5,814,240.43 = 1,720,863.11/x
  3. Step 3: Cross multiply
    3,878,821.73x = 5,814,240.43 × 1,720,863.11
  4. Step 4: Simplify right side
    3,878,821.73x = 10,005,511,881,201.01
  5. Step 5: Solve for x
    x = 10,005,511,881,201.01/3,878,821.73
  6. Step 6: Final answer
    x = 2,579,523.52

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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.