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Finding the Fourth Proportional to 479,538.88, 661,716.49 and 264,665.12

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Solution

The fourth proportional to 479,538.88, 661,716.49 and 264,665.12 is: 365,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,538.88 : 661,716.49 = 264,665.12 : x
  2. Step 2: Convert to fraction form
    479,538.88/661,716.49 = 264,665.12/x
  3. Step 3: Cross multiply
    479,538.88x = 661,716.49 × 264,665.12
  4. Step 4: Simplify right side
    479,538.88x = 175,133,274,479.99
  5. Step 5: Solve for x
    x = 175,133,274,479.99/479,538.88
  6. Step 6: Final answer
    x = 365,211.83

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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.