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Finding the Third Proportional to 990,009 and 1,487,200.50

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Solution

The third proportional to 990,009 and 1,487,200.50 is: 2,234,086.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,009 : 1,487,200.50 = 1,487,200.50 : x
  2. Step 2: Convert to fraction form
    990,009/1,487,200.50 = 1,487,200.50/x
  3. Step 3: Cross multiply
    990,009x = 1,487,200.50 × 1,487,200.50
  4. Step 4: Simplify right side
    990,009x = 2,211,765,327,200.25
  5. Step 5: Solve for x
    x = 2,211,765,327,200.25/990,009
  6. Step 6: Final answer
    x = 2,234,086.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.