Home / 1,977,405.39-2,728,840.94-1,161,643.45

Finding the Fourth Proportional to 1,977,405.39, 2,728,840.94 and 1,161,643.45

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Solution

The fourth proportional to 1,977,405.39, 2,728,840.94 and 1,161,643.45 is: 1,603,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,405.39 : 2,728,840.94 = 1,161,643.45 : x
  2. Step 2: Convert to fraction form
    1,977,405.39/2,728,840.94 = 1,161,643.45/x
  3. Step 3: Cross multiply
    1,977,405.39x = 2,728,840.94 × 1,161,643.45
  4. Step 4: Simplify right side
    1,977,405.39x = 3,169,940,204,042.84
  5. Step 5: Solve for x
    x = 3,169,940,204,042.84/1,977,405.39
  6. Step 6: Final answer
    x = 1,603,080.59

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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.