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Finding the Fourth Proportional to 455,286.32, 628,339.83 and 264,288.32

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Solution

The fourth proportional to 455,286.32, 628,339.83 and 264,288.32 is: 364,743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,286.32 : 628,339.83 = 264,288.32 : x
  2. Step 2: Convert to fraction form
    455,286.32/628,339.83 = 264,288.32/x
  3. Step 3: Cross multiply
    455,286.32x = 628,339.83 × 264,288.32
  4. Step 4: Simplify right side
    455,286.32x = 166,062,877,769.90
  5. Step 5: Solve for x
    x = 166,062,877,769.90/455,286.32
  6. Step 6: Final answer
    x = 364,743.83

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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.