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Finding the Third Proportional to 280,746 and 613,972

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Solution

The third proportional to 280,746 and 613,972 is: 1,342,714.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,746 : 613,972 = 613,972 : x
  2. Step 2: Convert to fraction form
    280,746/613,972 = 613,972/x
  3. Step 3: Cross multiply
    280,746x = 613,972 × 613,972
  4. Step 4: Simplify right side
    280,746x = 376,961,616,784
  5. Step 5: Solve for x
    x = 376,961,616,784/280,746
  6. Step 6: Final answer
    x = 1,342,714.11

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.