Home / 1,191,062.22-1,643,676.24-647,198

Finding the Fourth Proportional to 1,191,062.22, 1,643,676.24 and 647,198

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Solution

The fourth proportional to 1,191,062.22, 1,643,676.24 and 647,198 is: 893,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,062.22 : 1,643,676.24 = 647,198 : x
  2. Step 2: Convert to fraction form
    1,191,062.22/1,643,676.24 = 647,198/x
  3. Step 3: Cross multiply
    1,191,062.22x = 1,643,676.24 × 647,198
  4. Step 4: Simplify right side
    1,191,062.22x = 1,063,783,975,175.52
  5. Step 5: Solve for x
    x = 1,063,783,975,175.52/1,191,062.22
  6. Step 6: Final answer
    x = 893,138.88

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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.