Home / 831,816.61-1,247,945.96-263,207.81

Finding the Fourth Proportional to 831,816.61, 1,247,945.96 and 263,207.81

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Solution

The fourth proportional to 831,816.61, 1,247,945.96 and 263,207.81 is: 394,881.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,816.61 : 1,247,945.96 = 263,207.81 : x
  2. Step 2: Convert to fraction form
    831,816.61/1,247,945.96 = 263,207.81/x
  3. Step 3: Cross multiply
    831,816.61x = 1,247,945.96 × 263,207.81
  4. Step 4: Simplify right side
    831,816.61x = 328,469,126,907.83
  5. Step 5: Solve for x
    x = 328,469,126,907.83/831,816.61
  6. Step 6: Final answer
    x = 394,881.66

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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.