Home / 1,188,141.11-1,781,499.91-378,175.64

Finding the Fourth Proportional to 1,188,141.11, 1,781,499.91 and 378,175.64

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Solution

The fourth proportional to 1,188,141.11, 1,781,499.91 and 378,175.64 is: 567,036.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,141.11 : 1,781,499.91 = 378,175.64 : x
  2. Step 2: Convert to fraction form
    1,188,141.11/1,781,499.91 = 378,175.64/x
  3. Step 3: Cross multiply
    1,188,141.11x = 1,781,499.91 × 378,175.64
  4. Step 4: Simplify right side
    1,188,141.11x = 673,719,868,624.19
  5. Step 5: Solve for x
    x = 673,719,868,624.19/1,188,141.11
  6. Step 6: Final answer
    x = 567,036.91

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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.