Home / 1,978,691.64-2,726,862.59-1,585,778.31

Finding the Fourth Proportional to 1,978,691.64, 2,726,862.59 and 1,585,778.31

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Solution

The fourth proportional to 1,978,691.64, 2,726,862.59 and 1,585,778.31 is: 2,185,383.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,691.64 : 2,726,862.59 = 1,585,778.31 : x
  2. Step 2: Convert to fraction form
    1,978,691.64/2,726,862.59 = 1,585,778.31/x
  3. Step 3: Cross multiply
    1,978,691.64x = 2,726,862.59 × 1,585,778.31
  4. Step 4: Simplify right side
    1,978,691.64x = 4,324,199,544,616.87
  5. Step 5: Solve for x
    x = 4,324,199,544,616.87/1,978,691.64
  6. Step 6: Final answer
    x = 2,185,383.24

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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.