Home / 828,147.83-1,242,221.87-259,528.73

Finding the Fourth Proportional to 828,147.83, 1,242,221.87 and 259,528.73

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Solution

The fourth proportional to 828,147.83, 1,242,221.87 and 259,528.73 is: 389,293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,147.83 : 1,242,221.87 = 259,528.73 : x
  2. Step 2: Convert to fraction form
    828,147.83/1,242,221.87 = 259,528.73/x
  3. Step 3: Cross multiply
    828,147.83x = 1,242,221.87 × 259,528.73
  4. Step 4: Simplify right side
    828,147.83x = 322,392,258,737.04
  5. Step 5: Solve for x
    x = 322,392,258,737.04/828,147.83
  6. Step 6: Final answer
    x = 389,293.13

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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.