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Finding the Fourth Proportional to 1,198,652.16, 1,797,975 and 987,440.88

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Solution

The fourth proportional to 1,198,652.16, 1,797,975 and 987,440.88 is: 1,481,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,652.16 : 1,797,975 = 987,440.88 : x
  2. Step 2: Convert to fraction form
    1,198,652.16/1,797,975 = 987,440.88/x
  3. Step 3: Cross multiply
    1,198,652.16x = 1,797,975 × 987,440.88
  4. Step 4: Simplify right side
    1,198,652.16x = 1,775,394,016,218
  5. Step 5: Solve for x
    x = 1,775,394,016,218/1,198,652.16
  6. Step 6: Final answer
    x = 1,481,158.65

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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.