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Finding the Third Proportional to 305,110 and 631,435

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Solution

The third proportional to 305,110 and 631,435 is: 1,306,775.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,110 : 631,435 = 631,435 : x
  2. Step 2: Convert to fraction form
    305,110/631,435 = 631,435/x
  3. Step 3: Cross multiply
    305,110x = 631,435 × 631,435
  4. Step 4: Simplify right side
    305,110x = 398,710,159,225
  5. Step 5: Solve for x
    x = 398,710,159,225/305,110
  6. Step 6: Final answer
    x = 1,306,775.13

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.