Home / 836,511.76-1,254,771.88-205,425.82

Finding the Fourth Proportional to 836,511.76, 1,254,771.88 and 205,425.82

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Solution

The fourth proportional to 836,511.76, 1,254,771.88 and 205,425.82 is: 308,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,511.76 : 1,254,771.88 = 205,425.82 : x
  2. Step 2: Convert to fraction form
    836,511.76/1,254,771.88 = 205,425.82/x
  3. Step 3: Cross multiply
    836,511.76x = 1,254,771.88 × 205,425.82
  4. Step 4: Simplify right side
    836,511.76x = 257,762,542,361.94
  5. Step 5: Solve for x
    x = 257,762,542,361.94/836,511.76
  6. Step 6: Final answer
    x = 308,139.77

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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.