Home / 828,584.61-1,242,878.13-252,212.91

Finding the Fourth Proportional to 828,584.61, 1,242,878.13 and 252,212.91

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Solution

The fourth proportional to 828,584.61, 1,242,878.13 and 252,212.91 is: 378,319.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,584.61 : 1,242,878.13 = 252,212.91 : x
  2. Step 2: Convert to fraction form
    828,584.61/1,242,878.13 = 252,212.91/x
  3. Step 3: Cross multiply
    828,584.61x = 1,242,878.13 × 252,212.91
  4. Step 4: Simplify right side
    828,584.61x = 313,469,909,942.66
  5. Step 5: Solve for x
    x = 313,469,909,942.66/828,584.61
  6. Step 6: Final answer
    x = 378,319.73

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Double scale
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Similar ratio
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1.5x scale

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.