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Finding the Third Proportional to 285,579 and 620,394.75

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Solution

The third proportional to 285,579 and 620,394.75 is: 1,347,751.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,579 : 620,394.75 = 620,394.75 : x
  2. Step 2: Convert to fraction form
    285,579/620,394.75 = 620,394.75/x
  3. Step 3: Cross multiply
    285,579x = 620,394.75 × 620,394.75
  4. Step 4: Simplify right side
    285,579x = 384,889,645,827.56
  5. Step 5: Solve for x
    x = 384,889,645,827.56/285,579
  6. Step 6: Final answer
    x = 1,347,751.92

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.