Home / 414,180.21-620,458.38-214,631.49

Finding the Fourth Proportional to 414,180.21, 620,458.38 and 214,631.49

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Solution

The fourth proportional to 414,180.21, 620,458.38 and 214,631.49 is: 321,526.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,180.21 : 620,458.38 = 214,631.49 : x
  2. Step 2: Convert to fraction form
    414,180.21/620,458.38 = 214,631.49/x
  3. Step 3: Cross multiply
    414,180.21x = 620,458.38 × 214,631.49
  4. Step 4: Simplify right side
    414,180.21x = 133,169,906,582.39
  5. Step 5: Solve for x
    x = 133,169,906,582.39/414,180.21
  6. Step 6: Final answer
    x = 321,526.48

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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.