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Finding the Third Proportional to 310,000.50 and 648,040.50

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Solution

The third proportional to 310,000.50 and 648,040.50 is: 1,354,696.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,000.50 : 648,040.50 = 648,040.50 : x
  2. Step 2: Convert to fraction form
    310,000.50/648,040.50 = 648,040.50/x
  3. Step 3: Cross multiply
    310,000.50x = 648,040.50 × 648,040.50
  4. Step 4: Simplify right side
    310,000.50x = 419,956,489,640.25
  5. Step 5: Solve for x
    x = 419,956,489,640.25/310,000.50
  6. Step 6: Final answer
    x = 1,354,696.17

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.