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Finding the Fourth Proportional to 414,807, 622,404.25 and 215,018.39

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Solution

The fourth proportional to 414,807, 622,404.25 and 215,018.39 is: 322,628.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,807 : 622,404.25 = 215,018.39 : x
  2. Step 2: Convert to fraction form
    414,807/622,404.25 = 215,018.39/x
  3. Step 3: Cross multiply
    414,807x = 622,404.25 × 215,018.39
  4. Step 4: Simplify right side
    414,807x = 133,828,359,764.16
  5. Step 5: Solve for x
    x = 133,828,359,764.16/414,807
  6. Step 6: Final answer
    x = 322,628.02

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1.5x scale

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.