Home / 414,905.60-622,358.40-115,385.60

Finding the Fourth Proportional to 414,905.60, 622,358.40 and 115,385.60

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Solution

The fourth proportional to 414,905.60, 622,358.40 and 115,385.60 is: 173,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,905.60 : 622,358.40 = 115,385.60 : x
  2. Step 2: Convert to fraction form
    414,905.60/622,358.40 = 115,385.60/x
  3. Step 3: Cross multiply
    414,905.60x = 622,358.40 × 115,385.60
  4. Step 4: Simplify right side
    414,905.60x = 71,811,197,399.04
  5. Step 5: Solve for x
    x = 71,811,197,399.04/414,905.60
  6. Step 6: Final answer
    x = 173,078.40

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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.