Home / 1,268,189.08-1,902,906.26-509,999.88

Finding the Fourth Proportional to 1,268,189.08, 1,902,906.26 and 509,999.88

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Solution

The fourth proportional to 1,268,189.08, 1,902,906.26 and 509,999.88 is: 765,250.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,189.08 : 1,902,906.26 = 509,999.88 : x
  2. Step 2: Convert to fraction form
    1,268,189.08/1,902,906.26 = 509,999.88/x
  3. Step 3: Cross multiply
    1,268,189.08x = 1,902,906.26 × 509,999.88
  4. Step 4: Simplify right side
    1,268,189.08x = 970,481,964,251.25
  5. Step 5: Solve for x
    x = 970,481,964,251.25/1,268,189.08
  6. Step 6: Final answer
    x = 765,250.21

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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.