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Finding the Fourth Proportional to 681,361.48, 940,266.66 and 379,549

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Solution

The fourth proportional to 681,361.48, 940,266.66 and 379,549 is: 523,770.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,361.48 : 940,266.66 = 379,549 : x
  2. Step 2: Convert to fraction form
    681,361.48/940,266.66 = 379,549/x
  3. Step 3: Cross multiply
    681,361.48x = 940,266.66 × 379,549
  4. Step 4: Simplify right side
    681,361.48x = 356,877,270,536.34
  5. Step 5: Solve for x
    x = 356,877,270,536.34/681,361.48
  6. Step 6: Final answer
    x = 523,770.83

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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.