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Finding the Fourth Proportional to 476,611.70, 715,081.37 and 298,910.66

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Solution

The fourth proportional to 476,611.70, 715,081.37 and 298,910.66 is: 448,468.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,611.70 : 715,081.37 = 298,910.66 : x
  2. Step 2: Convert to fraction form
    476,611.70/715,081.37 = 298,910.66/x
  3. Step 3: Cross multiply
    476,611.70x = 715,081.37 × 298,910.66
  4. Step 4: Simplify right side
    476,611.70x = 213,745,439,190.44
  5. Step 5: Solve for x
    x = 213,745,439,190.44/476,611.70
  6. Step 6: Final answer
    x = 448,468.73

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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.