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Finding the Fourth Proportional to 504,885.30, 756,951.30 and 305,163.60

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Solution

The fourth proportional to 504,885.30, 756,951.30 and 305,163.60 is: 457,517.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,885.30 : 756,951.30 = 305,163.60 : x
  2. Step 2: Convert to fraction form
    504,885.30/756,951.30 = 305,163.60/x
  3. Step 3: Cross multiply
    504,885.30x = 756,951.30 × 305,163.60
  4. Step 4: Simplify right side
    504,885.30x = 230,993,983,732.68
  5. Step 5: Solve for x
    x = 230,993,983,732.68/504,885.30
  6. Step 6: Final answer
    x = 457,517.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.