Home / 782,667.32-1,080,249.86-476,843.72

Finding the Fourth Proportional to 782,667.32, 1,080,249.86 and 476,843.72

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Solution

The fourth proportional to 782,667.32, 1,080,249.86 and 476,843.72 is: 658,147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,667.32 : 1,080,249.86 = 476,843.72 : x
  2. Step 2: Convert to fraction form
    782,667.32/1,080,249.86 = 476,843.72/x
  3. Step 3: Cross multiply
    782,667.32x = 1,080,249.86 × 476,843.72
  4. Step 4: Simplify right side
    782,667.32x = 515,110,361,771.88
  5. Step 5: Solve for x
    x = 515,110,361,771.88/782,667.32
  6. Step 6: Final answer
    x = 658,147.27

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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.