Home / 417,990.78-576,831.51-227,007.90

Finding the Fourth Proportional to 417,990.78, 576,831.51 and 227,007.90

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Solution

The fourth proportional to 417,990.78, 576,831.51 and 227,007.90 is: 313,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,990.78 : 576,831.51 = 227,007.90 : x
  2. Step 2: Convert to fraction form
    417,990.78/576,831.51 = 227,007.90/x
  3. Step 3: Cross multiply
    417,990.78x = 576,831.51 × 227,007.90
  4. Step 4: Simplify right side
    417,990.78x = 130,945,309,738.93
  5. Step 5: Solve for x
    x = 130,945,309,738.93/417,990.78
  6. Step 6: Final answer
    x = 313,273.20

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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.