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Finding the Fourth Proportional to 394,663.79, 591,958.78 and 110,379.76

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Solution

The fourth proportional to 394,663.79, 591,958.78 and 110,379.76 is: 165,559.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,663.79 : 591,958.78 = 110,379.76 : x
  2. Step 2: Convert to fraction form
    394,663.79/591,958.78 = 110,379.76/x
  3. Step 3: Cross multiply
    394,663.79x = 591,958.78 × 110,379.76
  4. Step 4: Simplify right side
    394,663.79x = 65,340,264,554.60
  5. Step 5: Solve for x
    x = 65,340,264,554.60/394,663.79
  6. Step 6: Final answer
    x = 165,559.31

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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.