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Finding the Third Proportional to 335,120 and 729,210

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Solution

The third proportional to 335,120 and 729,210 is: 1,586,736.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,120 : 729,210 = 729,210 : x
  2. Step 2: Convert to fraction form
    335,120/729,210 = 729,210/x
  3. Step 3: Cross multiply
    335,120x = 729,210 × 729,210
  4. Step 4: Simplify right side
    335,120x = 531,747,224,100
  5. Step 5: Solve for x
    x = 531,747,224,100/335,120
  6. Step 6: Final answer
    x = 1,586,736.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.