Home / 876,134.52-1,314,201.78-343,906.20

Finding the Fourth Proportional to 876,134.52, 1,314,201.78 and 343,906.20

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Solution

The fourth proportional to 876,134.52, 1,314,201.78 and 343,906.20 is: 515,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,134.52 : 1,314,201.78 = 343,906.20 : x
  2. Step 2: Convert to fraction form
    876,134.52/1,314,201.78 = 343,906.20/x
  3. Step 3: Cross multiply
    876,134.52x = 1,314,201.78 × 343,906.20
  4. Step 4: Simplify right side
    876,134.52x = 451,962,140,193.04
  5. Step 5: Solve for x
    x = 451,962,140,193.04/876,134.52
  6. Step 6: Final answer
    x = 515,859.30

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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.