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Finding the Fourth Proportional to 455,147.52, 682,509.99 and 265,662.60

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Solution

The fourth proportional to 455,147.52, 682,509.99 and 265,662.60 is: 398,370.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,147.52 : 682,509.99 = 265,662.60 : x
  2. Step 2: Convert to fraction form
    455,147.52/682,509.99 = 265,662.60/x
  3. Step 3: Cross multiply
    455,147.52x = 682,509.99 × 265,662.60
  4. Step 4: Simplify right side
    455,147.52x = 181,317,378,469.37
  5. Step 5: Solve for x
    x = 181,317,378,469.37/455,147.52
  6. Step 6: Final answer
    x = 398,370.57

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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.