Home / 3,378,893.19-5,068,286.04-820,129.29

Finding the Fourth Proportional to 3,378,893.19, 5,068,286.04 and 820,129.29

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Solution

The fourth proportional to 3,378,893.19, 5,068,286.04 and 820,129.29 is: 1,230,180.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378,893.19 : 5,068,286.04 = 820,129.29 : x
  2. Step 2: Convert to fraction form
    3,378,893.19/5,068,286.04 = 820,129.29/x
  3. Step 3: Cross multiply
    3,378,893.19x = 5,068,286.04 × 820,129.29
  4. Step 4: Simplify right side
    3,378,893.19x = 4,156,649,831,502.11
  5. Step 5: Solve for x
    x = 4,156,649,831,502.11/3,378,893.19
  6. Step 6: Final answer
    x = 1,230,180.89

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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.