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Finding the Fourth Proportional to 682,440.95, 941,771.81 and 376,517.31

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Solution

The fourth proportional to 682,440.95, 941,771.81 and 376,517.31 is: 519,595.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,440.95 : 941,771.81 = 376,517.31 : x
  2. Step 2: Convert to fraction form
    682,440.95/941,771.81 = 376,517.31/x
  3. Step 3: Cross multiply
    682,440.95x = 941,771.81 × 376,517.31
  4. Step 4: Simplify right side
    682,440.95x = 354,593,391,242.15
  5. Step 5: Solve for x
    x = 354,593,391,242.15/682,440.95
  6. Step 6: Final answer
    x = 519,595.71

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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.