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Finding the Third Proportional to 455,455.13 and 680,673.38

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Solution

The third proportional to 455,455.13 and 680,673.38 is: 1,017,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,455.13 : 680,673.38 = 680,673.38 : x
  2. Step 2: Convert to fraction form
    455,455.13/680,673.38 = 680,673.38/x
  3. Step 3: Cross multiply
    455,455.13x = 680,673.38 × 680,673.38
  4. Step 4: Simplify right side
    455,455.13x = 463,316,243,433.89
  5. Step 5: Solve for x
    x = 463,316,243,433.89/455,455.13
  6. Step 6: Final answer
    x = 1,017,259.92

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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.