Home / 783,189.92-1,080,765.60-443,660.96

Finding the Fourth Proportional to 783,189.92, 1,080,765.60 and 443,660.96

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Solution

The fourth proportional to 783,189.92, 1,080,765.60 and 443,660.96 is: 612,231.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,189.92 : 1,080,765.60 = 443,660.96 : x
  2. Step 2: Convert to fraction form
    783,189.92/1,080,765.60 = 443,660.96/x
  3. Step 3: Cross multiply
    783,189.92x = 1,080,765.60 × 443,660.96
  4. Step 4: Simplify right side
    783,189.92x = 479,493,503,630.98
  5. Step 5: Solve for x
    x = 479,493,503,630.98/783,189.92
  6. Step 6: Final answer
    x = 612,231.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.