Home / 1,138,067.36-1,570,512.48-628,804.16

Finding the Fourth Proportional to 1,138,067.36, 1,570,512.48 and 628,804.16

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Solution

The fourth proportional to 1,138,067.36, 1,570,512.48 and 628,804.16 is: 867,738.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,067.36 : 1,570,512.48 = 628,804.16 : x
  2. Step 2: Convert to fraction form
    1,138,067.36/1,570,512.48 = 628,804.16/x
  3. Step 3: Cross multiply
    1,138,067.36x = 1,570,512.48 × 628,804.16
  4. Step 4: Simplify right side
    1,138,067.36x = 987,544,780,755.92
  5. Step 5: Solve for x
    x = 987,544,780,755.92/1,138,067.36
  6. Step 6: Final answer
    x = 867,738.43

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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.