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Finding the Third Proportional to 409,755 and 615,820.50

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Solution

The third proportional to 409,755 and 615,820.50 is: 925,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,755 : 615,820.50 = 615,820.50 : x
  2. Step 2: Convert to fraction form
    409,755/615,820.50 = 615,820.50/x
  3. Step 3: Cross multiply
    409,755x = 615,820.50 × 615,820.50
  4. Step 4: Simplify right side
    409,755x = 379,234,888,220.25
  5. Step 5: Solve for x
    x = 379,234,888,220.25/409,755
  6. Step 6: Final answer
    x = 925,516.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.