Home / 782,890.56-1,079,790.48-674,183.16

Finding the Fourth Proportional to 782,890.56, 1,079,790.48 and 674,183.16

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Solution

The fourth proportional to 782,890.56, 1,079,790.48 and 674,183.16 is: 929,857.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,890.56 : 1,079,790.48 = 674,183.16 : x
  2. Step 2: Convert to fraction form
    782,890.56/1,079,790.48 = 674,183.16/x
  3. Step 3: Cross multiply
    782,890.56x = 1,079,790.48 × 674,183.16
  4. Step 4: Simplify right side
    782,890.56x = 727,976,557,944.32
  5. Step 5: Solve for x
    x = 727,976,557,944.32/782,890.56
  6. Step 6: Final answer
    x = 929,857.37

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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.