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Finding the Third Proportional to 515,790 and 1,133,688

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Solution

The third proportional to 515,790 and 1,133,688 is: 2,491,805.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,790 : 1,133,688 = 1,133,688 : x
  2. Step 2: Convert to fraction form
    515,790/1,133,688 = 1,133,688/x
  3. Step 3: Cross multiply
    515,790x = 1,133,688 × 1,133,688
  4. Step 4: Simplify right side
    515,790x = 1,285,248,481,344
  5. Step 5: Solve for x
    x = 1,285,248,481,344/515,790
  6. Step 6: Final answer
    x = 2,491,805.74

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.