Home / 1,188,140.11-1,781,498.41-378,174.64

Finding the Fourth Proportional to 1,188,140.11, 1,781,498.41 and 378,174.64

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Solution

The fourth proportional to 1,188,140.11, 1,781,498.41 and 378,174.64 is: 567,035.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,140.11 : 1,781,498.41 = 378,174.64 : x
  2. Step 2: Convert to fraction form
    1,188,140.11/1,781,498.41 = 378,174.64/x
  3. Step 3: Cross multiply
    1,188,140.11x = 1,781,498.41 × 378,174.64
  4. Step 4: Simplify right side
    1,188,140.11x = 673,717,519,862.32
  5. Step 5: Solve for x
    x = 673,717,519,862.32/1,188,140.11
  6. Step 6: Final answer
    x = 567,035.41

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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.