Home / 837,428.94-1,256,144.09-206,342.82

Finding the Fourth Proportional to 837,428.94, 1,256,144.09 and 206,342.82

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Solution

The fourth proportional to 837,428.94, 1,256,144.09 and 206,342.82 is: 309,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,428.94 : 1,256,144.09 = 206,342.82 : x
  2. Step 2: Convert to fraction form
    837,428.94/1,256,144.09 = 206,342.82/x
  3. Step 3: Cross multiply
    837,428.94x = 1,256,144.09 × 206,342.82
  4. Step 4: Simplify right side
    837,428.94x = 259,196,312,825.22
  5. Step 5: Solve for x
    x = 259,196,312,825.22/837,428.94
  6. Step 6: Final answer
    x = 309,514.40

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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.