Home / 3,828,958.40-5,736,439.20-3,115,121.60

Finding the Fourth Proportional to 3,828,958.40, 5,736,439.20 and 3,115,121.60

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Solution

The fourth proportional to 3,828,958.40, 5,736,439.20 and 3,115,121.60 is: 4,666,988.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828,958.40 : 5,736,439.20 = 3,115,121.60 : x
  2. Step 2: Convert to fraction form
    3,828,958.40/5,736,439.20 = 3,115,121.60/x
  3. Step 3: Cross multiply
    3,828,958.40x = 5,736,439.20 × 3,115,121.60
  4. Step 4: Simplify right side
    3,828,958.40x = 17,869,705,659,006.72
  5. Step 5: Solve for x
    x = 17,869,705,659,006.72/3,828,958.40
  6. Step 6: Final answer
    x = 4,666,988.72

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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.