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Finding the Third Proportional to 455,375 and 679,370

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Solution

The third proportional to 455,375 and 679,370 is: 1,013,546.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,375 : 679,370 = 679,370 : x
  2. Step 2: Convert to fraction form
    455,375/679,370 = 679,370/x
  3. Step 3: Cross multiply
    455,375x = 679,370 × 679,370
  4. Step 4: Simplify right side
    455,375x = 461,543,596,900
  5. Step 5: Solve for x
    x = 461,543,596,900/455,375
  6. Step 6: Final answer
    x = 1,013,546.19

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.