Home / 852,185.12-1,278,183.23-305,055.86

Finding the Fourth Proportional to 852,185.12, 1,278,183.23 and 305,055.86

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Solution

The fourth proportional to 852,185.12, 1,278,183.23 and 305,055.86 is: 457,549.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,185.12 : 1,278,183.23 = 305,055.86 : x
  2. Step 2: Convert to fraction form
    852,185.12/1,278,183.23 = 305,055.86/x
  3. Step 3: Cross multiply
    852,185.12x = 1,278,183.23 × 305,055.86
  4. Step 4: Simplify right side
    852,185.12x = 389,917,282,939.95
  5. Step 5: Solve for x
    x = 389,917,282,939.95/852,185.12
  6. Step 6: Final answer
    x = 457,549.98

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Double scale
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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.