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Finding the Third Proportional to 476,857.13 and 720,145.69

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Solution

The third proportional to 476,857.13 and 720,145.69 is: 1,087,558.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,857.13 : 720,145.69 = 720,145.69 : x
  2. Step 2: Convert to fraction form
    476,857.13/720,145.69 = 720,145.69/x
  3. Step 3: Cross multiply
    476,857.13x = 720,145.69 × 720,145.69
  4. Step 4: Simplify right side
    476,857.13x = 518,609,811,224.85
  5. Step 5: Solve for x
    x = 518,609,811,224.85/476,857.13
  6. Step 6: Final answer
    x = 1,087,558.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.