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Finding the Third Proportional to 398,857 and 598,578

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Solution

The third proportional to 398,857 and 598,578 is: 898,305.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,857 : 598,578 = 598,578 : x
  2. Step 2: Convert to fraction form
    398,857/598,578 = 598,578/x
  3. Step 3: Cross multiply
    398,857x = 598,578 × 598,578
  4. Step 4: Simplify right side
    398,857x = 358,295,622,084
  5. Step 5: Solve for x
    x = 358,295,622,084/398,857
  6. Step 6: Final answer
    x = 898,305.96

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