Home / 837,921.46-1,256,865.18-206,840.74

Finding the Fourth Proportional to 837,921.46, 1,256,865.18 and 206,840.74

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Solution

The fourth proportional to 837,921.46, 1,256,865.18 and 206,840.74 is: 310,256.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,921.46 : 1,256,865.18 = 206,840.74 : x
  2. Step 2: Convert to fraction form
    837,921.46/1,256,865.18 = 206,840.74/x
  3. Step 3: Cross multiply
    837,921.46x = 1,256,865.18 × 206,840.74
  4. Step 4: Simplify right side
    837,921.46x = 259,970,923,911.43
  5. Step 5: Solve for x
    x = 259,970,923,911.43/837,921.46
  6. Step 6: Final answer
    x = 310,256.91

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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.