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Finding the Fourth Proportional to 400,519.92, 600,980.04 and 187,198.32

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Solution

The fourth proportional to 400,519.92, 600,980.04 and 187,198.32 is: 280,891.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,519.92 : 600,980.04 = 187,198.32 : x
  2. Step 2: Convert to fraction form
    400,519.92/600,980.04 = 187,198.32/x
  3. Step 3: Cross multiply
    400,519.92x = 600,980.04 × 187,198.32
  4. Step 4: Simplify right side
    400,519.92x = 112,502,453,841.53
  5. Step 5: Solve for x
    x = 112,502,453,841.53/400,519.92
  6. Step 6: Final answer
    x = 280,891.03

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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.