Home / 681,134.22-939,965.49-394,820.46

Finding the Fourth Proportional to 681,134.22, 939,965.49 and 394,820.46

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Solution

The fourth proportional to 681,134.22, 939,965.49 and 394,820.46 is: 544,852.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,134.22 : 939,965.49 = 394,820.46 : x
  2. Step 2: Convert to fraction form
    681,134.22/939,965.49 = 394,820.46/x
  3. Step 3: Cross multiply
    681,134.22x = 939,965.49 × 394,820.46
  4. Step 4: Simplify right side
    681,134.22x = 371,117,607,145.93
  5. Step 5: Solve for x
    x = 371,117,607,145.93/681,134.22
  6. Step 6: Final answer
    x = 544,852.39

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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.