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Finding the Fourth Proportional to 3,108,078, 4,662,381.06 and 864,216

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Solution

The fourth proportional to 3,108,078, 4,662,381.06 and 864,216 is: 1,296,397.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108,078 : 4,662,381.06 = 864,216 : x
  2. Step 2: Convert to fraction form
    3,108,078/4,662,381.06 = 864,216/x
  3. Step 3: Cross multiply
    3,108,078x = 4,662,381.06 × 864,216
  4. Step 4: Simplify right side
    3,108,078x = 4,029,304,310,148.96
  5. Step 5: Solve for x
    x = 4,029,304,310,148.96/3,108,078
  6. Step 6: Final answer
    x = 1,296,397.42

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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.