Home / 1,268,920.44-1,902,620.31-403,981.56

Finding the Fourth Proportional to 1,268,920.44, 1,902,620.31 and 403,981.56

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Solution

The fourth proportional to 1,268,920.44, 1,902,620.31 and 403,981.56 is: 605,730.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,920.44 : 1,902,620.31 = 403,981.56 : x
  2. Step 2: Convert to fraction form
    1,268,920.44/1,902,620.31 = 403,981.56/x
  3. Step 3: Cross multiply
    1,268,920.44x = 1,902,620.31 × 403,981.56
  4. Step 4: Simplify right side
    1,268,920.44x = 768,623,520,921.48
  5. Step 5: Solve for x
    x = 768,623,520,921.48/1,268,920.44
  6. Step 6: Final answer
    x = 605,730.27

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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.