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Finding the Third Proportional to 305,970 and 662,772

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Solution

The third proportional to 305,970 and 662,772 is: 1,435,652.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,970 : 662,772 = 662,772 : x
  2. Step 2: Convert to fraction form
    305,970/662,772 = 662,772/x
  3. Step 3: Cross multiply
    305,970x = 662,772 × 662,772
  4. Step 4: Simplify right side
    305,970x = 439,266,723,984
  5. Step 5: Solve for x
    x = 439,266,723,984/305,970
  6. Step 6: Final answer
    x = 1,435,652.92

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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.