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Finding the Third Proportional to 294,780 and 631,617

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Solution

The third proportional to 294,780 and 631,617 is: 1,353,348.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,780 : 631,617 = 631,617 : x
  2. Step 2: Convert to fraction form
    294,780/631,617 = 631,617/x
  3. Step 3: Cross multiply
    294,780x = 631,617 × 631,617
  4. Step 4: Simplify right side
    294,780x = 398,940,034,689
  5. Step 5: Solve for x
    x = 398,940,034,689/294,780
  6. Step 6: Final answer
    x = 1,353,348.38

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.