Home / 728,096.97-1,004,778.50-405,827.54

Finding the Fourth Proportional to 728,096.97, 1,004,778.50 and 405,827.54

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Solution

The fourth proportional to 728,096.97, 1,004,778.50 and 405,827.54 is: 560,044.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,096.97 : 1,004,778.50 = 405,827.54 : x
  2. Step 2: Convert to fraction form
    728,096.97/1,004,778.50 = 405,827.54/x
  3. Step 3: Cross multiply
    728,096.97x = 1,004,778.50 × 405,827.54
  4. Step 4: Simplify right side
    728,096.97x = 407,766,786,899.89
  5. Step 5: Solve for x
    x = 407,766,786,899.89/728,096.97
  6. Step 6: Final answer
    x = 560,044.61

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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.