Home / 1,998,990.46-2,997,584.16-987,717.88

Finding the Fourth Proportional to 1,998,990.46, 2,997,584.16 and 987,717.88

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Solution

The fourth proportional to 1,998,990.46, 2,997,584.16 and 987,717.88 is: 1,481,131.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,990.46 : 2,997,584.16 = 987,717.88 : x
  2. Step 2: Convert to fraction form
    1,998,990.46/2,997,584.16 = 987,717.88/x
  3. Step 3: Cross multiply
    1,998,990.46x = 2,997,584.16 × 987,717.88
  4. Step 4: Simplify right side
    1,998,990.46x = 2,960,767,471,636.78
  5. Step 5: Solve for x
    x = 2,960,767,471,636.78/1,998,990.46
  6. Step 6: Final answer
    x = 1,481,131.37

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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.