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Finding the Third Proportional to 433,228 and 669,511

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Solution

The third proportional to 433,228 and 669,511 is: 1,034,662.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,228 : 669,511 = 669,511 : x
  2. Step 2: Convert to fraction form
    433,228/669,511 = 669,511/x
  3. Step 3: Cross multiply
    433,228x = 669,511 × 669,511
  4. Step 4: Simplify right side
    433,228x = 448,244,979,121
  5. Step 5: Solve for x
    x = 448,244,979,121/433,228
  6. Step 6: Final answer
    x = 1,034,662.99

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.