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Finding the Third Proportional to 1,285,725 and 1,890,180.75

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Solution

The third proportional to 1,285,725 and 1,890,180.75 is: 2,778,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,725 : 1,890,180.75 = 1,890,180.75 : x
  2. Step 2: Convert to fraction form
    1,285,725/1,890,180.75 = 1,890,180.75/x
  3. Step 3: Cross multiply
    1,285,725x = 1,890,180.75 × 1,890,180.75
  4. Step 4: Simplify right side
    1,285,725x = 3,572,783,267,670.56
  5. Step 5: Solve for x
    x = 3,572,783,267,670.56/1,285,725
  6. Step 6: Final answer
    x = 2,778,808.27

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.