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Finding the Third Proportional to 413,391 and 620,082

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Solution

The third proportional to 413,391 and 620,082 is: 930,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,391 : 620,082 = 620,082 : x
  2. Step 2: Convert to fraction form
    413,391/620,082 = 620,082/x
  3. Step 3: Cross multiply
    413,391x = 620,082 × 620,082
  4. Step 4: Simplify right side
    413,391x = 384,501,686,724
  5. Step 5: Solve for x
    x = 384,501,686,724/413,391
  6. Step 6: Final answer
    x = 930,116.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.