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Finding the Fourth Proportional to 664,994.10, 996,835.05 and 327,758.70

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Solution

The fourth proportional to 664,994.10, 996,835.05 and 327,758.70 is: 491,314.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,994.10 : 996,835.05 = 327,758.70 : x
  2. Step 2: Convert to fraction form
    664,994.10/996,835.05 = 327,758.70/x
  3. Step 3: Cross multiply
    664,994.10x = 996,835.05 × 327,758.70
  4. Step 4: Simplify right side
    664,994.10x = 326,721,360,102.44
  5. Step 5: Solve for x
    x = 326,721,360,102.44/664,994.10
  6. Step 6: Final answer
    x = 491,314.67

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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.