Home / 1,268,921.44-1,902,621.81-403,982.56

Finding the Fourth Proportional to 1,268,921.44, 1,902,621.81 and 403,982.56

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Solution

The fourth proportional to 1,268,921.44, 1,902,621.81 and 403,982.56 is: 605,731.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,921.44 : 1,902,621.81 = 403,982.56 : x
  2. Step 2: Convert to fraction form
    1,268,921.44/1,902,621.81 = 403,982.56/x
  3. Step 3: Cross multiply
    1,268,921.44x = 1,902,621.81 × 403,982.56
  4. Step 4: Simplify right side
    1,268,921.44x = 768,626,029,515.63
  5. Step 5: Solve for x
    x = 768,626,029,515.63/1,268,921.44
  6. Step 6: Final answer
    x = 605,731.77

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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.