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Finding the Fourth Proportional to 3,994,309.07, 5,988,967.30 and 1,687,616.43

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Solution

The fourth proportional to 3,994,309.07, 5,988,967.30 and 1,687,616.43 is: 2,530,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994,309.07 : 5,988,967.30 = 1,687,616.43 : x
  2. Step 2: Convert to fraction form
    3,994,309.07/5,988,967.30 = 1,687,616.43/x
  3. Step 3: Cross multiply
    3,994,309.07x = 5,988,967.30 × 1,687,616.43
  4. Step 4: Simplify right side
    3,994,309.07x = 10,107,079,635,513.72
  5. Step 5: Solve for x
    x = 10,107,079,635,513.72/3,994,309.07
  6. Step 6: Final answer
    x = 2,530,369.95

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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.