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Finding the Third Proportional to 296,896.50 and 640,446.75

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Solution

The third proportional to 296,896.50 and 640,446.75 is: 1,381,532.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,896.50 : 640,446.75 = 640,446.75 : x
  2. Step 2: Convert to fraction form
    296,896.50/640,446.75 = 640,446.75/x
  3. Step 3: Cross multiply
    296,896.50x = 640,446.75 × 640,446.75
  4. Step 4: Simplify right side
    296,896.50x = 410,172,039,585.56
  5. Step 5: Solve for x
    x = 410,172,039,585.56/296,896.50
  6. Step 6: Final answer
    x = 1,381,532.08

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.