Home / 857,321.28-1,183,170.24-475,422.48

Finding the Fourth Proportional to 857,321.28, 1,183,170.24 and 475,422.48

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Solution

The fourth proportional to 857,321.28, 1,183,170.24 and 475,422.48 is: 656,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,321.28 : 1,183,170.24 = 475,422.48 : x
  2. Step 2: Convert to fraction form
    857,321.28/1,183,170.24 = 475,422.48/x
  3. Step 3: Cross multiply
    857,321.28x = 1,183,170.24 × 475,422.48
  4. Step 4: Simplify right side
    857,321.28x = 562,505,729,763.00
  5. Step 5: Solve for x
    x = 562,505,729,763.00/857,321.28
  6. Step 6: Final answer
    x = 656,120.11

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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.