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Finding the Third Proportional to 228,428 and 491,856

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Solution

The third proportional to 228,428 and 491,856 is: 1,059,074.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,428 : 491,856 = 491,856 : x
  2. Step 2: Convert to fraction form
    228,428/491,856 = 491,856/x
  3. Step 3: Cross multiply
    228,428x = 491,856 × 491,856
  4. Step 4: Simplify right side
    228,428x = 241,922,324,736
  5. Step 5: Solve for x
    x = 241,922,324,736/228,428
  6. Step 6: Final answer
    x = 1,059,074.74

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.