Home / 831,839.72-1,147,991.96-469,131.24

Finding the Fourth Proportional to 831,839.72, 1,147,991.96 and 469,131.24

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Solution

The fourth proportional to 831,839.72, 1,147,991.96 and 469,131.24 is: 647,431.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,839.72 : 1,147,991.96 = 469,131.24 : x
  2. Step 2: Convert to fraction form
    831,839.72/1,147,991.96 = 469,131.24/x
  3. Step 3: Cross multiply
    831,839.72x = 1,147,991.96 × 469,131.24
  4. Step 4: Simplify right side
    831,839.72x = 538,558,891,704.83
  5. Step 5: Solve for x
    x = 538,558,891,704.83/831,839.72
  6. Step 6: Final answer
    x = 647,431.08

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