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Finding the Fourth Proportional to 999,909, 1,500,019.92 and 325,833.84

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Solution

The fourth proportional to 999,909, 1,500,019.92 and 325,833.84 is: 488,801.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,909 : 1,500,019.92 = 325,833.84 : x
  2. Step 2: Convert to fraction form
    999,909/1,500,019.92 = 325,833.84/x
  3. Step 3: Cross multiply
    999,909x = 1,500,019.92 × 325,833.84
  4. Step 4: Simplify right side
    999,909x = 488,757,250,610.09
  5. Step 5: Solve for x
    x = 488,757,250,610.09/999,909
  6. Step 6: Final answer
    x = 488,801.73

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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.