Home / 693,309.33-1,039,963.52-261,108.32

Finding the Fourth Proportional to 693,309.33, 1,039,963.52 and 261,108.32

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Solution

The fourth proportional to 693,309.33, 1,039,963.52 and 261,108.32 is: 391,662.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,309.33 : 1,039,963.52 = 261,108.32 : x
  2. Step 2: Convert to fraction form
    693,309.33/1,039,963.52 = 261,108.32/x
  3. Step 3: Cross multiply
    693,309.33x = 1,039,963.52 × 261,108.32
  4. Step 4: Simplify right side
    693,309.33x = 271,543,123,021.44
  5. Step 5: Solve for x
    x = 271,543,123,021.44/693,309.33
  6. Step 6: Final answer
    x = 391,662.29

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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.