Home / 827,190.30-1,240,785.45-228,243.90

Finding the Fourth Proportional to 827,190.30, 1,240,785.45 and 228,243.90

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Solution

The fourth proportional to 827,190.30, 1,240,785.45 and 228,243.90 is: 342,365.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,190.30 : 1,240,785.45 = 228,243.90 : x
  2. Step 2: Convert to fraction form
    827,190.30/1,240,785.45 = 228,243.90/x
  3. Step 3: Cross multiply
    827,190.30x = 1,240,785.45 × 228,243.90
  4. Step 4: Simplify right side
    827,190.30x = 283,201,710,171.26
  5. Step 5: Solve for x
    x = 283,201,710,171.26/827,190.30
  6. Step 6: Final answer
    x = 342,365.85

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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.