Home / 809,321.70-1,116,864.16-446,745.78

Finding the Fourth Proportional to 809,321.70, 1,116,864.16 and 446,745.78

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Solution

The fourth proportional to 809,321.70, 1,116,864.16 and 446,745.78 is: 616,509.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,321.70 : 1,116,864.16 = 446,745.78 : x
  2. Step 2: Convert to fraction form
    809,321.70/1,116,864.16 = 446,745.78/x
  3. Step 3: Cross multiply
    809,321.70x = 1,116,864.16 × 446,745.78
  4. Step 4: Simplify right side
    809,321.70x = 498,954,350,313.25
  5. Step 5: Solve for x
    x = 498,954,350,313.25/809,321.70
  6. Step 6: Final answer
    x = 616,509.29

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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.