Home / 831,691.54-1,247,691.03-263,215.90

Finding the Fourth Proportional to 831,691.54, 1,247,691.03 and 263,215.90

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Solution

The fourth proportional to 831,691.54, 1,247,691.03 and 263,215.90 is: 394,872.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,691.54 : 1,247,691.03 = 263,215.90 : x
  2. Step 2: Convert to fraction form
    831,691.54/1,247,691.03 = 263,215.90/x
  3. Step 3: Cross multiply
    831,691.54x = 1,247,691.03 × 263,215.90
  4. Step 4: Simplify right side
    831,691.54x = 328,412,117,383.38
  5. Step 5: Solve for x
    x = 328,412,117,383.38/831,691.54
  6. Step 6: Final answer
    x = 394,872.50

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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.