Home / 837,680.32-1,256,514.72-339,037.12

Finding the Fourth Proportional to 837,680.32, 1,256,514.72 and 339,037.12

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Solution

The fourth proportional to 837,680.32, 1,256,514.72 and 339,037.12 is: 508,553.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,680.32 : 1,256,514.72 = 339,037.12 : x
  2. Step 2: Convert to fraction form
    837,680.32/1,256,514.72 = 339,037.12/x
  3. Step 3: Cross multiply
    837,680.32x = 1,256,514.72 × 339,037.12
  4. Step 4: Simplify right side
    837,680.32x = 426,005,131,906.41
  5. Step 5: Solve for x
    x = 426,005,131,906.41/837,680.32
  6. Step 6: Final answer
    x = 508,553.35

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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.