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Finding the Third Proportional to 457,119 and 697,281

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Solution

The third proportional to 457,119 and 697,281 is: 1,063,619.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,119 : 697,281 = 697,281 : x
  2. Step 2: Convert to fraction form
    457,119/697,281 = 697,281/x
  3. Step 3: Cross multiply
    457,119x = 697,281 × 697,281
  4. Step 4: Simplify right side
    457,119x = 486,200,792,961
  5. Step 5: Solve for x
    x = 486,200,792,961/457,119
  6. Step 6: Final answer
    x = 1,063,619.74

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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.