Home / 2,862,179.70-3,949,854.06-1,638,480.30

Finding the Fourth Proportional to 2,862,179.70, 3,949,854.06 and 1,638,480.30

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Solution

The fourth proportional to 2,862,179.70, 3,949,854.06 and 1,638,480.30 is: 2,261,129.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862,179.70 : 3,949,854.06 = 1,638,480.30 : x
  2. Step 2: Convert to fraction form
    2,862,179.70/3,949,854.06 = 1,638,480.30/x
  3. Step 3: Cross multiply
    2,862,179.70x = 3,949,854.06 × 1,638,480.30
  4. Step 4: Simplify right side
    2,862,179.70x = 6,471,758,065,185.02
  5. Step 5: Solve for x
    x = 6,471,758,065,185.02/2,862,179.70
  6. Step 6: Final answer
    x = 2,261,129.19

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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.