Home / 722,105.36-996,520.96-395,432.16

Finding the Fourth Proportional to 722,105.36, 996,520.96 and 395,432.16

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Solution

The fourth proportional to 722,105.36, 996,520.96 and 395,432.16 is: 545,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,105.36 : 996,520.96 = 395,432.16 : x
  2. Step 2: Convert to fraction form
    722,105.36/996,520.96 = 395,432.16/x
  3. Step 3: Cross multiply
    722,105.36x = 996,520.96 × 395,432.16
  4. Step 4: Simplify right side
    722,105.36x = 394,056,435,698.07
  5. Step 5: Solve for x
    x = 394,056,435,698.07/722,105.36
  6. Step 6: Final answer
    x = 545,704.90

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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.