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Finding the Third Proportional to 300,639.75 and 626,156.63

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Solution

The third proportional to 300,639.75 and 626,156.63 is: 1,304,126.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,639.75 : 626,156.63 = 626,156.63 : x
  2. Step 2: Convert to fraction form
    300,639.75/626,156.63 = 626,156.63/x
  3. Step 3: Cross multiply
    300,639.75x = 626,156.63 × 626,156.63
  4. Step 4: Simplify right side
    300,639.75x = 392,072,119,031.39
  5. Step 5: Solve for x
    x = 392,072,119,031.39/300,639.75
  6. Step 6: Final answer
    x = 1,304,126.01

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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.