Home / 1,222.09-1,831.90-606.24

Finding the Fourth Proportional to 1,222.09, 1,831.90 and 606.24

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Solution

The fourth proportional to 1,222.09, 1,831.90 and 606.24 is: 908.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222.09 : 1,831.90 = 606.24 : x
  2. Step 2: Convert to fraction form
    1,222.09/1,831.90 = 606.24/x
  3. Step 3: Cross multiply
    1,222.09x = 1,831.90 × 606.24
  4. Step 4: Simplify right side
    1,222.09x = 1,110,571.06
  5. Step 5: Solve for x
    x = 1,110,571.06/1,222.09
  6. Step 6: Final answer
    x = 908.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.