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Finding the Third Proportional to 219,685 and 479,465

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Solution

The third proportional to 219,685 and 479,465 is: 1,046,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,685 : 479,465 = 479,465 : x
  2. Step 2: Convert to fraction form
    219,685/479,465 = 479,465/x
  3. Step 3: Cross multiply
    219,685x = 479,465 × 479,465
  4. Step 4: Simplify right side
    219,685x = 229,886,686,225
  5. Step 5: Solve for x
    x = 229,886,686,225/219,685
  6. Step 6: Final answer
    x = 1,046,437.79

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.