Home / 828,221.73-1,240,116.99-486,383.37

Finding the Fourth Proportional to 828,221.73, 1,240,116.99 and 486,383.37

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Solution

The fourth proportional to 828,221.73, 1,240,116.99 and 486,383.37 is: 728,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,221.73 : 1,240,116.99 = 486,383.37 : x
  2. Step 2: Convert to fraction form
    828,221.73/1,240,116.99 = 486,383.37/x
  3. Step 3: Cross multiply
    828,221.73x = 1,240,116.99 × 486,383.37
  4. Step 4: Simplify right side
    828,221.73x = 603,172,280,790.46
  5. Step 5: Solve for x
    x = 603,172,280,790.46/828,221.73
  6. Step 6: Final answer
    x = 728,273.91

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Double scale
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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.