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Finding the Third Proportional to 393,622.50 and 626,635.75

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Solution

The third proportional to 393,622.50 and 626,635.75 is: 997,586.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,622.50 : 626,635.75 = 626,635.75 : x
  2. Step 2: Convert to fraction form
    393,622.50/626,635.75 = 626,635.75/x
  3. Step 3: Cross multiply
    393,622.50x = 626,635.75 × 626,635.75
  4. Step 4: Simplify right side
    393,622.50x = 392,672,363,178.06
  5. Step 5: Solve for x
    x = 392,672,363,178.06/393,622.50
  6. Step 6: Final answer
    x = 997,586.17

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.