Home / 681,814.50-1,022,869.38-261,090.39

Finding the Fourth Proportional to 681,814.50, 1,022,869.38 and 261,090.39

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Solution

The fourth proportional to 681,814.50, 1,022,869.38 and 261,090.39 is: 391,692.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,814.50 : 1,022,869.38 = 261,090.39 : x
  2. Step 2: Convert to fraction form
    681,814.50/1,022,869.38 = 261,090.39/x
  3. Step 3: Cross multiply
    681,814.50x = 1,022,869.38 × 261,090.39
  4. Step 4: Simplify right side
    681,814.50x = 267,061,365,343.26
  5. Step 5: Solve for x
    x = 267,061,365,343.26/681,814.50
  6. Step 6: Final answer
    x = 391,692.12

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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.