Home / 757,189.22-1,134,836.66-378,215.73

Finding the Fourth Proportional to 757,189.22, 1,134,836.66 and 378,215.73

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Solution

The fourth proportional to 757,189.22, 1,134,836.66 and 378,215.73 is: 566,850.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,189.22 : 1,134,836.66 = 378,215.73 : x
  2. Step 2: Convert to fraction form
    757,189.22/1,134,836.66 = 378,215.73/x
  3. Step 3: Cross multiply
    757,189.22x = 1,134,836.66 × 378,215.73
  4. Step 4: Simplify right side
    757,189.22x = 429,213,076,738.20
  5. Step 5: Solve for x
    x = 429,213,076,738.20/757,189.22
  6. Step 6: Final answer
    x = 566,850.49

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Double scale
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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.