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Finding the Third Proportional to 299,436.75 and 648,747

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Solution

The third proportional to 299,436.75 and 648,747 is: 1,405,547.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,436.75 : 648,747 = 648,747 : x
  2. Step 2: Convert to fraction form
    299,436.75/648,747 = 648,747/x
  3. Step 3: Cross multiply
    299,436.75x = 648,747 × 648,747
  4. Step 4: Simplify right side
    299,436.75x = 420,872,670,009
  5. Step 5: Solve for x
    x = 420,872,670,009/299,436.75
  6. Step 6: Final answer
    x = 1,405,547.82

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.