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Finding the Fourth Proportional to 400,463.66, 600,632.30 and 187,379.39

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Solution

The fourth proportional to 400,463.66, 600,632.30 and 187,379.39 is: 281,039.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,463.66 : 600,632.30 = 187,379.39 : x
  2. Step 2: Convert to fraction form
    400,463.66/600,632.30 = 187,379.39/x
  3. Step 3: Cross multiply
    400,463.66x = 600,632.30 × 187,379.39
  4. Step 4: Simplify right side
    400,463.66x = 112,546,110,048.24
  5. Step 5: Solve for x
    x = 112,546,110,048.24/400,463.66
  6. Step 6: Final answer
    x = 281,039.51

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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.