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Finding the Third Proportional to 666,348 and 949,678

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Solution

The third proportional to 666,348 and 949,678 is: 1,353,479.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,348 : 949,678 = 949,678 : x
  2. Step 2: Convert to fraction form
    666,348/949,678 = 949,678/x
  3. Step 3: Cross multiply
    666,348x = 949,678 × 949,678
  4. Step 4: Simplify right side
    666,348x = 901,888,303,684
  5. Step 5: Solve for x
    x = 901,888,303,684/666,348
  6. Step 6: Final answer
    x = 1,353,479.42

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.