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Finding the Fourth Proportional to 641,120.82, 884,794.72 and 365,485.24

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Solution

The fourth proportional to 641,120.82, 884,794.72 and 365,485.24 is: 504,396.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,120.82 : 884,794.72 = 365,485.24 : x
  2. Step 2: Convert to fraction form
    641,120.82/884,794.72 = 365,485.24/x
  3. Step 3: Cross multiply
    641,120.82x = 884,794.72 × 365,485.24
  4. Step 4: Simplify right side
    641,120.82x = 323,379,410,589.93
  5. Step 5: Solve for x
    x = 323,379,410,589.93/641,120.82
  6. Step 6: Final answer
    x = 504,396.99

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Double scale
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1.5x scale

Why These Related Problems?

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