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Finding the Third Proportional to 490,121 and 749,597

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Solution

The third proportional to 490,121 and 749,597 is: 1,146,442.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,121 : 749,597 = 749,597 : x
  2. Step 2: Convert to fraction form
    490,121/749,597 = 749,597/x
  3. Step 3: Cross multiply
    490,121x = 749,597 × 749,597
  4. Step 4: Simplify right side
    490,121x = 561,895,662,409
  5. Step 5: Solve for x
    x = 561,895,662,409/490,121
  6. Step 6: Final answer
    x = 1,146,442.74

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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.