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Finding the Fourth Proportional to 479,398.56, 661,571.92 and 264,544.80

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Solution

The fourth proportional to 479,398.56, 661,571.92 and 264,544.80 is: 365,072.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,398.56 : 661,571.92 = 264,544.80 : x
  2. Step 2: Convert to fraction form
    479,398.56/661,571.92 = 264,544.80/x
  3. Step 3: Cross multiply
    479,398.56x = 661,571.92 × 264,544.80
  4. Step 4: Simplify right side
    479,398.56x = 175,015,411,262.02
  5. Step 5: Solve for x
    x = 175,015,411,262.02/479,398.56
  6. Step 6: Final answer
    x = 365,072.88

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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.