Home / 420,831.22-580,738.10-229,845.38

Finding the Fourth Proportional to 420,831.22, 580,738.10 and 229,845.38

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Solution

The fourth proportional to 420,831.22, 580,738.10 and 229,845.38 is: 317,181.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,831.22 : 580,738.10 = 229,845.38 : x
  2. Step 2: Convert to fraction form
    420,831.22/580,738.10 = 229,845.38/x
  3. Step 3: Cross multiply
    420,831.22x = 580,738.10 × 229,845.38
  4. Step 4: Simplify right side
    420,831.22x = 133,479,969,274.98
  5. Step 5: Solve for x
    x = 133,479,969,274.98/420,831.22
  6. Step 6: Final answer
    x = 317,181.72

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1.5x scale

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.