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Finding the Fourth Proportional to 479,710.72, 661,996.56 and 264,846.21

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Solution

The fourth proportional to 479,710.72, 661,996.56 and 264,846.21 is: 365,485.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,710.72 : 661,996.56 = 264,846.21 : x
  2. Step 2: Convert to fraction form
    479,710.72/661,996.56 = 264,846.21/x
  3. Step 3: Cross multiply
    479,710.72x = 661,996.56 × 264,846.21
  4. Step 4: Simplify right side
    479,710.72x = 175,327,279,949.04
  5. Step 5: Solve for x
    x = 175,327,279,949.04/479,710.72
  6. Step 6: Final answer
    x = 365,485.43

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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.