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Finding the Third Proportional to 305,457.19 and 671,011.31

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Solution

The third proportional to 305,457.19 and 671,011.31 is: 1,474,040.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,457.19 : 671,011.31 = 671,011.31 : x
  2. Step 2: Convert to fraction form
    305,457.19/671,011.31 = 671,011.31/x
  3. Step 3: Cross multiply
    305,457.19x = 671,011.31 × 671,011.31
  4. Step 4: Simplify right side
    305,457.19x = 450,256,181,502.97
  5. Step 5: Solve for x
    x = 450,256,181,502.97/305,457.19
  6. Step 6: Final answer
    x = 1,474,040.23

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.