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Finding the Third Proportional to 455,360.63 and 679,350.38

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Solution

The third proportional to 455,360.63 and 679,350.38 is: 1,013,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,360.63 : 679,350.38 = 679,350.38 : x
  2. Step 2: Convert to fraction form
    455,360.63/679,350.38 = 679,350.38/x
  3. Step 3: Cross multiply
    455,360.63x = 679,350.38 × 679,350.38
  4. Step 4: Simplify right side
    455,360.63x = 461,516,932,012.64
  5. Step 5: Solve for x
    x = 461,516,932,012.64/455,360.63
  6. Step 6: Final answer
    x = 1,013,519.63

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Why These Related Problems?

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