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Finding the Third Proportional to 667,554 and 1,390,332

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Solution

The third proportional to 667,554 and 1,390,332 is: 2,895,680.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,554 : 1,390,332 = 1,390,332 : x
  2. Step 2: Convert to fraction form
    667,554/1,390,332 = 1,390,332/x
  3. Step 3: Cross multiply
    667,554x = 1,390,332 × 1,390,332
  4. Step 4: Simplify right side
    667,554x = 1,933,023,070,224
  5. Step 5: Solve for x
    x = 1,933,023,070,224/667,554
  6. Step 6: Final answer
    x = 2,895,680.45

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.