Home / 3,988,930.56-5,980,065.12-1,857,917.76

Finding the Fourth Proportional to 3,988,930.56, 5,980,065.12 and 1,857,917.76

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Solution

The fourth proportional to 3,988,930.56, 5,980,065.12 and 1,857,917.76 is: 2,785,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,930.56 : 5,980,065.12 = 1,857,917.76 : x
  2. Step 2: Convert to fraction form
    3,988,930.56/5,980,065.12 = 1,857,917.76/x
  3. Step 3: Cross multiply
    3,988,930.56x = 5,980,065.12 × 1,857,917.76
  4. Step 4: Simplify right side
    3,988,930.56x = 11,110,469,192,404.53
  5. Step 5: Solve for x
    x = 11,110,469,192,404.53/3,988,930.56
  6. Step 6: Final answer
    x = 2,785,325.30

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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.