Home / 1,188,140.61-1,781,499.16-378,175.14

Finding the Fourth Proportional to 1,188,140.61, 1,781,499.16 and 378,175.14

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Solution

The fourth proportional to 1,188,140.61, 1,781,499.16 and 378,175.14 is: 567,036.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,140.61 : 1,781,499.16 = 378,175.14 : x
  2. Step 2: Convert to fraction form
    1,188,140.61/1,781,499.16 = 378,175.14/x
  3. Step 3: Cross multiply
    1,188,140.61x = 1,781,499.16 × 378,175.14
  4. Step 4: Simplify right side
    1,188,140.61x = 673,718,694,242.88
  5. Step 5: Solve for x
    x = 673,718,694,242.88/1,188,140.61
  6. Step 6: Final answer
    x = 567,036.16

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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.