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Finding the Third Proportional to 515,646 and 1,110,280

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Solution

The third proportional to 515,646 and 1,110,280 is: 2,390,635.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,646 : 1,110,280 = 1,110,280 : x
  2. Step 2: Convert to fraction form
    515,646/1,110,280 = 1,110,280/x
  3. Step 3: Cross multiply
    515,646x = 1,110,280 × 1,110,280
  4. Step 4: Simplify right side
    515,646x = 1,232,721,678,400
  5. Step 5: Solve for x
    x = 1,232,721,678,400/515,646
  6. Step 6: Final answer
    x = 2,390,635.59

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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.