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Finding the Third Proportional to 372,690 and 496,543

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Solution

The third proportional to 372,690 and 496,543 is: 661,555.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,690 : 496,543 = 496,543 : x
  2. Step 2: Convert to fraction form
    372,690/496,543 = 496,543/x
  3. Step 3: Cross multiply
    372,690x = 496,543 × 496,543
  4. Step 4: Simplify right side
    372,690x = 246,554,950,849
  5. Step 5: Solve for x
    x = 246,554,950,849/372,690
  6. Step 6: Final answer
    x = 661,555.05

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.