Home / 1,977,164.91-2,728,578.56-1,117,761.39

Finding the Fourth Proportional to 1,977,164.91, 2,728,578.56 and 1,117,761.39

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Solution

The fourth proportional to 1,977,164.91, 2,728,578.56 and 1,117,761.39 is: 1,542,562.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,164.91 : 2,728,578.56 = 1,117,761.39 : x
  2. Step 2: Convert to fraction form
    1,977,164.91/2,728,578.56 = 1,117,761.39/x
  3. Step 3: Cross multiply
    1,977,164.91x = 2,728,578.56 × 1,117,761.39
  4. Step 4: Simplify right side
    1,977,164.91x = 3,049,899,758,360.99
  5. Step 5: Solve for x
    x = 3,049,899,758,360.99/1,977,164.91
  6. Step 6: Final answer
    x = 1,542,562.15

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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.