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Finding the Fourth Proportional to 685,818.22, 946,396.26 and 379,873.96

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Solution

The fourth proportional to 685,818.22, 946,396.26 and 379,873.96 is: 524,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,818.22 : 946,396.26 = 379,873.96 : x
  2. Step 2: Convert to fraction form
    685,818.22/946,396.26 = 379,873.96/x
  3. Step 3: Cross multiply
    685,818.22x = 946,396.26 × 379,873.96
  4. Step 4: Simplify right side
    685,818.22x = 359,511,295,015.39
  5. Step 5: Solve for x
    x = 359,511,295,015.39/685,818.22
  6. Step 6: Final answer
    x = 524,207.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.