Home / 538,706.47-743,419.75-296,997.61

Finding the Fourth Proportional to 538,706.47, 743,419.75 and 296,997.61

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Solution

The fourth proportional to 538,706.47, 743,419.75 and 296,997.61 is: 409,859.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,706.47 : 743,419.75 = 296,997.61 : x
  2. Step 2: Convert to fraction form
    538,706.47/743,419.75 = 296,997.61/x
  3. Step 3: Cross multiply
    538,706.47x = 743,419.75 × 296,997.61
  4. Step 4: Simplify right side
    538,706.47x = 220,793,888,976.80
  5. Step 5: Solve for x
    x = 220,793,888,976.80/538,706.47
  6. Step 6: Final answer
    x = 409,859.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.