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Finding the Third Proportional to 498,355 and 747,378

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Solution

The third proportional to 498,355 and 747,378 is: 1,120,835.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,355 : 747,378 = 747,378 : x
  2. Step 2: Convert to fraction form
    498,355/747,378 = 747,378/x
  3. Step 3: Cross multiply
    498,355x = 747,378 × 747,378
  4. Step 4: Simplify right side
    498,355x = 558,573,874,884
  5. Step 5: Solve for x
    x = 558,573,874,884/498,355
  6. Step 6: Final answer
    x = 1,120,835.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.