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Finding the Third Proportional to 393,268 and 607,287

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Solution

The third proportional to 393,268 and 607,287 is: 937,776.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,268 : 607,287 = 607,287 : x
  2. Step 2: Convert to fraction form
    393,268/607,287 = 607,287/x
  3. Step 3: Cross multiply
    393,268x = 607,287 × 607,287
  4. Step 4: Simplify right side
    393,268x = 368,797,500,369
  5. Step 5: Solve for x
    x = 368,797,500,369/393,268
  6. Step 6: Final answer
    x = 937,776.53

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.