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Finding the Third Proportional to 486,382 and 777,008

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Solution

The third proportional to 486,382 and 777,008 is: 1,241,290.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,382 : 777,008 = 777,008 : x
  2. Step 2: Convert to fraction form
    486,382/777,008 = 777,008/x
  3. Step 3: Cross multiply
    486,382x = 777,008 × 777,008
  4. Step 4: Simplify right side
    486,382x = 603,741,432,064
  5. Step 5: Solve for x
    x = 603,741,432,064/486,382
  6. Step 6: Final answer
    x = 1,241,290.66

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.