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Finding the Third Proportional to 471,429 and 729,816.75

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Solution

The third proportional to 471,429 and 729,816.75 is: 1,129,825.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,429 : 729,816.75 = 729,816.75 : x
  2. Step 2: Convert to fraction form
    471,429/729,816.75 = 729,816.75/x
  3. Step 3: Cross multiply
    471,429x = 729,816.75 × 729,816.75
  4. Step 4: Simplify right side
    471,429x = 532,632,488,580.56
  5. Step 5: Solve for x
    x = 532,632,488,580.56/471,429
  6. Step 6: Final answer
    x = 1,129,825.46

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.