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Finding the Third Proportional to 457,878 and 700,425

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Solution

The third proportional to 457,878 and 700,425 is: 1,071,453.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,878 : 700,425 = 700,425 : x
  2. Step 2: Convert to fraction form
    457,878/700,425 = 700,425/x
  3. Step 3: Cross multiply
    457,878x = 700,425 × 700,425
  4. Step 4: Simplify right side
    457,878x = 490,595,180,625
  5. Step 5: Solve for x
    x = 490,595,180,625/457,878
  6. Step 6: Final answer
    x = 1,071,453.93

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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.