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Finding the Third Proportional to 285,606 and 615,340

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Solution

The third proportional to 285,606 and 615,340 is: 1,325,754.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,606 : 615,340 = 615,340 : x
  2. Step 2: Convert to fraction form
    285,606/615,340 = 615,340/x
  3. Step 3: Cross multiply
    285,606x = 615,340 × 615,340
  4. Step 4: Simplify right side
    285,606x = 378,643,315,600
  5. Step 5: Solve for x
    x = 378,643,315,600/285,606
  6. Step 6: Final answer
    x = 1,325,754.07

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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.