Home / 3,378,885.71-5,068,274.85-820,121.83

Finding the Fourth Proportional to 3,378,885.71, 5,068,274.85 and 820,121.83

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Solution

The fourth proportional to 3,378,885.71, 5,068,274.85 and 820,121.83 is: 1,230,169.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378,885.71 : 5,068,274.85 = 820,121.83 : x
  2. Step 2: Convert to fraction form
    3,378,885.71/5,068,274.85 = 820,121.83/x
  3. Step 3: Cross multiply
    3,378,885.71x = 5,068,274.85 × 820,121.83
  4. Step 4: Simplify right side
    3,378,885.71x = 4,156,602,832,254.29
  5. Step 5: Solve for x
    x = 4,156,602,832,254.29/3,378,885.71
  6. Step 6: Final answer
    x = 1,230,169.71

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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.