Home / 414,939.75-622,410.17-115,420.35

Finding the Fourth Proportional to 414,939.75, 622,410.17 and 115,420.35

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Solution

The fourth proportional to 414,939.75, 622,410.17 and 115,420.35 is: 173,130.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,939.75 : 622,410.17 = 115,420.35 : x
  2. Step 2: Convert to fraction form
    414,939.75/622,410.17 = 115,420.35/x
  3. Step 3: Cross multiply
    414,939.75x = 622,410.17 × 115,420.35
  4. Step 4: Simplify right side
    414,939.75x = 71,838,799,087.86
  5. Step 5: Solve for x
    x = 71,838,799,087.86/414,939.75
  6. Step 6: Final answer
    x = 173,130.68

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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.