Home / 831,816.95-1,247,946.48-263,208.15

Finding the Fourth Proportional to 831,816.95, 1,247,946.48 and 263,208.15

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Solution

The fourth proportional to 831,816.95, 1,247,946.48 and 263,208.15 is: 394,882.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,816.95 : 1,247,946.48 = 263,208.15 : x
  2. Step 2: Convert to fraction form
    831,816.95/1,247,946.48 = 263,208.15/x
  3. Step 3: Cross multiply
    831,816.95x = 1,247,946.48 × 263,208.15
  4. Step 4: Simplify right side
    831,816.95x = 328,469,684,299.81
  5. Step 5: Solve for x
    x = 328,469,684,299.81/831,816.95
  6. Step 6: Final answer
    x = 394,882.17

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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.