Home / 1,763,530.38-2,643,422.58-1,121,815.31

Finding the Fourth Proportional to 1,763,530.38, 2,643,422.58 and 1,121,815.31

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Solution

The fourth proportional to 1,763,530.38, 2,643,422.58 and 1,121,815.31 is: 1,681,531.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763,530.38 : 2,643,422.58 = 1,121,815.31 : x
  2. Step 2: Convert to fraction form
    1,763,530.38/2,643,422.58 = 1,121,815.31/x
  3. Step 3: Cross multiply
    1,763,530.38x = 2,643,422.58 × 1,121,815.31
  4. Step 4: Simplify right side
    1,763,530.38x = 2,965,431,907,826.59
  5. Step 5: Solve for x
    x = 2,965,431,907,826.59/1,763,530.38
  6. Step 6: Final answer
    x = 1,681,531.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.