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Finding the Fourth Proportional to 668,961.52, 923,169.40 and 363,037.92

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Solution

The fourth proportional to 668,961.52, 923,169.40 and 363,037.92 is: 500,993.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,961.52 : 923,169.40 = 363,037.92 : x
  2. Step 2: Convert to fraction form
    668,961.52/923,169.40 = 363,037.92/x
  3. Step 3: Cross multiply
    668,961.52x = 923,169.40 × 363,037.92
  4. Step 4: Simplify right side
    668,961.52x = 335,145,498,783.65
  5. Step 5: Solve for x
    x = 335,145,498,783.65/668,961.52
  6. Step 6: Final answer
    x = 500,993.69

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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.