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Finding the Third Proportional to 728,486 and 1,102,889

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Solution

The third proportional to 728,486 and 1,102,889 is: 1,669,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,486 : 1,102,889 = 1,102,889 : x
  2. Step 2: Convert to fraction form
    728,486/1,102,889 = 1,102,889/x
  3. Step 3: Cross multiply
    728,486x = 1,102,889 × 1,102,889
  4. Step 4: Simplify right side
    728,486x = 1,216,364,146,321
  5. Step 5: Solve for x
    x = 1,216,364,146,321/728,486
  6. Step 6: Final answer
    x = 1,669,715.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.