Home / 739,889.82-1,109,843.28-260,131.68

Finding the Fourth Proportional to 739,889.82, 1,109,843.28 and 260,131.68

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Solution

The fourth proportional to 739,889.82, 1,109,843.28 and 260,131.68 is: 390,200.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,889.82 : 1,109,843.28 = 260,131.68 : x
  2. Step 2: Convert to fraction form
    739,889.82/1,109,843.28 = 260,131.68/x
  3. Step 3: Cross multiply
    739,889.82x = 1,109,843.28 × 260,131.68
  4. Step 4: Simplify right side
    739,889.82x = 288,705,396,963.11
  5. Step 5: Solve for x
    x = 288,705,396,963.11/739,889.82
  6. Step 6: Final answer
    x = 390,200.53

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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.