Home / 1,268,107.20-1,902,160.80-1,110,643.20

Finding the Fourth Proportional to 1,268,107.20, 1,902,160.80 and 1,110,643.20

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Solution

The fourth proportional to 1,268,107.20, 1,902,160.80 and 1,110,643.20 is: 1,665,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,107.20 : 1,902,160.80 = 1,110,643.20 : x
  2. Step 2: Convert to fraction form
    1,268,107.20/1,902,160.80 = 1,110,643.20/x
  3. Step 3: Cross multiply
    1,268,107.20x = 1,902,160.80 × 1,110,643.20
  4. Step 4: Simplify right side
    1,268,107.20x = 2,112,621,957,826.56
  5. Step 5: Solve for x
    x = 2,112,621,957,826.56/1,268,107.20
  6. Step 6: Final answer
    x = 1,665,964.80

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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.