Home / 1,138,455.75-1,571,105.07-622,198.32

Finding the Fourth Proportional to 1,138,455.75, 1,571,105.07 and 622,198.32

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Solution

The fourth proportional to 1,138,455.75, 1,571,105.07 and 622,198.32 is: 858,653.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,455.75 : 1,571,105.07 = 622,198.32 : x
  2. Step 2: Convert to fraction form
    1,138,455.75/1,571,105.07 = 622,198.32/x
  3. Step 3: Cross multiply
    1,138,455.75x = 1,571,105.07 × 622,198.32
  4. Step 4: Simplify right side
    1,138,455.75x = 977,538,935,097.48
  5. Step 5: Solve for x
    x = 977,538,935,097.48/1,138,455.75
  6. Step 6: Final answer
    x = 858,653.43

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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.