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Finding the Third Proportional to 422,091 and 604,638

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Solution

The third proportional to 422,091 and 604,638 is: 866,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,091 : 604,638 = 604,638 : x
  2. Step 2: Convert to fraction form
    422,091/604,638 = 604,638/x
  3. Step 3: Cross multiply
    422,091x = 604,638 × 604,638
  4. Step 4: Simplify right side
    422,091x = 365,587,111,044
  5. Step 5: Solve for x
    x = 365,587,111,044/422,091
  6. Step 6: Final answer
    x = 866,133.40

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.