Home / 837,425.19-1,256,138.46-206,339.07

Finding the Fourth Proportional to 837,425.19, 1,256,138.46 and 206,339.07

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Solution

The fourth proportional to 837,425.19, 1,256,138.46 and 206,339.07 is: 309,508.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,425.19 : 1,256,138.46 = 206,339.07 : x
  2. Step 2: Convert to fraction form
    837,425.19/1,256,138.46 = 206,339.07/x
  3. Step 3: Cross multiply
    837,425.19x = 1,256,138.46 × 206,339.07
  4. Step 4: Simplify right side
    837,425.19x = 259,190,441,627.63
  5. Step 5: Solve for x
    x = 259,190,441,627.63/837,425.19
  6. Step 6: Final answer
    x = 309,508.77

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Double scale
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Similar ratio
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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.