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Finding the Third Proportional to 515,644 and 1,110,276

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Solution

The third proportional to 515,644 and 1,110,276 is: 2,390,627.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,644 : 1,110,276 = 1,110,276 : x
  2. Step 2: Convert to fraction form
    515,644/1,110,276 = 1,110,276/x
  3. Step 3: Cross multiply
    515,644x = 1,110,276 × 1,110,276
  4. Step 4: Simplify right side
    515,644x = 1,232,712,796,176
  5. Step 5: Solve for x
    x = 1,232,712,796,176/515,644
  6. Step 6: Final answer
    x = 2,390,627.63

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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.