Home / 1,188,141.36-1,781,500.28-378,175.89

Finding the Fourth Proportional to 1,188,141.36, 1,781,500.28 and 378,175.89

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Solution

The fourth proportional to 1,188,141.36, 1,781,500.28 and 378,175.89 is: 567,037.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,141.36 : 1,781,500.28 = 378,175.89 : x
  2. Step 2: Convert to fraction form
    1,188,141.36/1,781,500.28 = 378,175.89/x
  3. Step 3: Cross multiply
    1,188,141.36x = 1,781,500.28 × 378,175.89
  4. Step 4: Simplify right side
    1,188,141.36x = 673,720,453,924.25
  5. Step 5: Solve for x
    x = 673,720,453,924.25/1,188,141.36
  6. Step 6: Final answer
    x = 567,037.29

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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.