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Finding the Third Proportional to 307,576 and 413,862

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Solution

The third proportional to 307,576 and 413,862 is: 556,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,576 : 413,862 = 413,862 : x
  2. Step 2: Convert to fraction form
    307,576/413,862 = 413,862/x
  3. Step 3: Cross multiply
    307,576x = 413,862 × 413,862
  4. Step 4: Simplify right side
    307,576x = 171,281,755,044
  5. Step 5: Solve for x
    x = 171,281,755,044/307,576
  6. Step 6: Final answer
    x = 556,876.20

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.