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Finding the Fourth Proportional to 561,517.44, 842,859.52 and 325,321.60

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Solution

The fourth proportional to 561,517.44, 842,859.52 and 325,321.60 is: 488,320.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,517.44 : 842,859.52 = 325,321.60 : x
  2. Step 2: Convert to fraction form
    561,517.44/842,859.52 = 325,321.60/x
  3. Step 3: Cross multiply
    561,517.44x = 842,859.52 × 325,321.60
  4. Step 4: Simplify right side
    561,517.44x = 274,200,407,621.63
  5. Step 5: Solve for x
    x = 274,200,407,621.63/561,517.44
  6. Step 6: Final answer
    x = 488,320.38

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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.