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Finding the Fourth Proportional to 682,401.84, 941,410.04 and 395,755.80

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Solution

The fourth proportional to 682,401.84, 941,410.04 and 395,755.80 is: 545,966.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,401.84 : 941,410.04 = 395,755.80 : x
  2. Step 2: Convert to fraction form
    682,401.84/941,410.04 = 395,755.80/x
  3. Step 3: Cross multiply
    682,401.84x = 941,410.04 × 395,755.80
  4. Step 4: Simplify right side
    682,401.84x = 372,568,481,529.45
  5. Step 5: Solve for x
    x = 372,568,481,529.45/682,401.84
  6. Step 6: Final answer
    x = 545,966.41

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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.