Home / 410,629.54-615,945.82-126,318.12

Finding the Fourth Proportional to 410,629.54, 615,945.82 and 126,318.12

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Solution

The fourth proportional to 410,629.54, 615,945.82 and 126,318.12 is: 189,477.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,629.54 : 615,945.82 = 126,318.12 : x
  2. Step 2: Convert to fraction form
    410,629.54/615,945.82 = 126,318.12/x
  3. Step 3: Cross multiply
    410,629.54x = 615,945.82 × 126,318.12
  4. Step 4: Simplify right side
    410,629.54x = 77,805,116,464.39
  5. Step 5: Solve for x
    x = 77,805,116,464.39/410,629.54
  6. Step 6: Final answer
    x = 189,477.64

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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.