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Finding the Third Proportional to 286,551 and 615,381

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Solution

The third proportional to 286,551 and 615,381 is: 1,321,558.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,551 : 615,381 = 615,381 : x
  2. Step 2: Convert to fraction form
    286,551/615,381 = 615,381/x
  3. Step 3: Cross multiply
    286,551x = 615,381 × 615,381
  4. Step 4: Simplify right side
    286,551x = 378,693,775,161
  5. Step 5: Solve for x
    x = 378,693,775,161/286,551
  6. Step 6: Final answer
    x = 1,321,558.03

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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.