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Finding the Third Proportional to 490,124 and 749,604

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Solution

The third proportional to 490,124 and 749,604 is: 1,146,457.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,124 : 749,604 = 749,604 : x
  2. Step 2: Convert to fraction form
    490,124/749,604 = 749,604/x
  3. Step 3: Cross multiply
    490,124x = 749,604 × 749,604
  4. Step 4: Simplify right side
    490,124x = 561,906,156,816
  5. Step 5: Solve for x
    x = 561,906,156,816/490,124
  6. Step 6: Final answer
    x = 1,146,457.13

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.