Home / 1,138,408.67-1,571,036.49-622,191.22

Finding the Fourth Proportional to 1,138,408.67, 1,571,036.49 and 622,191.22

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Solution

The fourth proportional to 1,138,408.67, 1,571,036.49 and 622,191.22 is: 858,641.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,408.67 : 1,571,036.49 = 622,191.22 : x
  2. Step 2: Convert to fraction form
    1,138,408.67/1,571,036.49 = 622,191.22/x
  3. Step 3: Cross multiply
    1,138,408.67x = 1,571,036.49 × 622,191.22
  4. Step 4: Simplify right side
    1,138,408.67x = 977,485,106,450.03
  5. Step 5: Solve for x
    x = 977,485,106,450.03/1,138,408.67
  6. Step 6: Final answer
    x = 858,641.65

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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.