Home / 3,608,728.71-4,979,969.42-1,977,056.61

Finding the Fourth Proportional to 3,608,728.71, 4,979,969.42 and 1,977,056.61

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Solution

The fourth proportional to 3,608,728.71, 4,979,969.42 and 1,977,056.61 is: 2,728,296.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608,728.71 : 4,979,969.42 = 1,977,056.61 : x
  2. Step 2: Convert to fraction form
    3,608,728.71/4,979,969.42 = 1,977,056.61/x
  3. Step 3: Cross multiply
    3,608,728.71x = 4,979,969.42 × 1,977,056.61
  4. Step 4: Simplify right side
    3,608,728.71x = 9,845,681,449,523.58
  5. Step 5: Solve for x
    x = 9,845,681,449,523.58/3,608,728.71
  6. Step 6: Final answer
    x = 2,728,296.37

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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.