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Finding the Third Proportional to 781,690.50 and 1,713,015

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Solution

The third proportional to 781,690.50 and 1,713,015 is: 3,753,941.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,690.50 : 1,713,015 = 1,713,015 : x
  2. Step 2: Convert to fraction form
    781,690.50/1,713,015 = 1,713,015/x
  3. Step 3: Cross multiply
    781,690.50x = 1,713,015 × 1,713,015
  4. Step 4: Simplify right side
    781,690.50x = 2,934,420,390,225
  5. Step 5: Solve for x
    x = 2,934,420,390,225/781,690.50
  6. Step 6: Final answer
    x = 3,753,941.48

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.