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Finding the Fourth Proportional to 603,906.78, 833,409.99 and 331,995.45

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Solution

The fourth proportional to 603,906.78, 833,409.99 and 331,995.45 is: 458,163.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,906.78 : 833,409.99 = 331,995.45 : x
  2. Step 2: Convert to fraction form
    603,906.78/833,409.99 = 331,995.45/x
  3. Step 3: Cross multiply
    603,906.78x = 833,409.99 × 331,995.45
  4. Step 4: Simplify right side
    603,906.78x = 276,688,324,664.55
  5. Step 5: Solve for x
    x = 276,688,324,664.55/603,906.78
  6. Step 6: Final answer
    x = 458,163.96

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Why These Related Problems?

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