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Finding the Fourth Proportional to 440,571, 608,039.82 and 261,723

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Solution

The fourth proportional to 440,571, 608,039.82 and 261,723 is: 361,208.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,571 : 608,039.82 = 261,723 : x
  2. Step 2: Convert to fraction form
    440,571/608,039.82 = 261,723/x
  3. Step 3: Cross multiply
    440,571x = 608,039.82 × 261,723
  4. Step 4: Simplify right side
    440,571x = 159,138,005,809.86
  5. Step 5: Solve for x
    x = 159,138,005,809.86/440,571
  6. Step 6: Final answer
    x = 361,208.54

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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.