Home / 414,429.28-621,840.75-214,712.44

Finding the Fourth Proportional to 414,429.28, 621,840.75 and 214,712.44

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Solution

The fourth proportional to 414,429.28, 621,840.75 and 214,712.44 is: 322,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,429.28 : 621,840.75 = 214,712.44 : x
  2. Step 2: Convert to fraction form
    414,429.28/621,840.75 = 214,712.44/x
  3. Step 3: Cross multiply
    414,429.28x = 621,840.75 × 214,712.44
  4. Step 4: Simplify right side
    414,429.28x = 133,516,944,723.93
  5. Step 5: Solve for x
    x = 133,516,944,723.93/414,429.28
  6. Step 6: Final answer
    x = 322,170.64

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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.