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Finding the Third Proportional to 693,321 and 1,490,119.50

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Solution

The third proportional to 693,321 and 1,490,119.50 is: 3,202,637.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,321 : 1,490,119.50 = 1,490,119.50 : x
  2. Step 2: Convert to fraction form
    693,321/1,490,119.50 = 1,490,119.50/x
  3. Step 3: Cross multiply
    693,321x = 1,490,119.50 × 1,490,119.50
  4. Step 4: Simplify right side
    693,321x = 2,220,456,124,280.25
  5. Step 5: Solve for x
    x = 2,220,456,124,280.25/693,321
  6. Step 6: Final answer
    x = 3,202,637.92

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.