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Finding the Fourth Proportional to 639,039.44, 958,651.32 and 195,842

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Solution

The fourth proportional to 639,039.44, 958,651.32 and 195,842 is: 293,791.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,039.44 : 958,651.32 = 195,842 : x
  2. Step 2: Convert to fraction form
    639,039.44/958,651.32 = 195,842/x
  3. Step 3: Cross multiply
    639,039.44x = 958,651.32 × 195,842
  4. Step 4: Simplify right side
    639,039.44x = 187,744,191,811.44
  5. Step 5: Solve for x
    x = 187,744,191,811.44/639,039.44
  6. Step 6: Final answer
    x = 293,791.24

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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.