Home / 819,183.59-1,130,958.28-728,288.49

Finding the Fourth Proportional to 819,183.59, 1,130,958.28 and 728,288.49

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Solution

The fourth proportional to 819,183.59, 1,130,958.28 and 728,288.49 is: 1,005,469.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,183.59 : 1,130,958.28 = 728,288.49 : x
  2. Step 2: Convert to fraction form
    819,183.59/1,130,958.28 = 728,288.49/x
  3. Step 3: Cross multiply
    819,183.59x = 1,130,958.28 × 728,288.49
  4. Step 4: Simplify right side
    819,183.59x = 823,663,902,462.88
  5. Step 5: Solve for x
    x = 823,663,902,462.88/819,183.59
  6. Step 6: Final answer
    x = 1,005,469.24

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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.