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Finding the Third Proportional to 307,896 and 671,520

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Solution

The third proportional to 307,896 and 671,520 is: 1,464,582.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,896 : 671,520 = 671,520 : x
  2. Step 2: Convert to fraction form
    307,896/671,520 = 671,520/x
  3. Step 3: Cross multiply
    307,896x = 671,520 × 671,520
  4. Step 4: Simplify right side
    307,896x = 450,939,110,400
  5. Step 5: Solve for x
    x = 450,939,110,400/307,896
  6. Step 6: Final answer
    x = 1,464,582.56

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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.