Home / 389,976.26-584,961.69-109,493.78

Finding the Fourth Proportional to 389,976.26, 584,961.69 and 109,493.78

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Solution

The fourth proportional to 389,976.26, 584,961.69 and 109,493.78 is: 164,239.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,976.26 : 584,961.69 = 109,493.78 : x
  2. Step 2: Convert to fraction form
    389,976.26/584,961.69 = 109,493.78/x
  3. Step 3: Cross multiply
    389,976.26x = 584,961.69 × 109,493.78
  4. Step 4: Simplify right side
    389,976.26x = 64,049,666,593.29
  5. Step 5: Solve for x
    x = 64,049,666,593.29/389,976.26
  6. Step 6: Final answer
    x = 164,239.91

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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.