Home / 414,040.21-621,072.61-114,542.86

Finding the Fourth Proportional to 414,040.21, 621,072.61 and 114,542.86

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Solution

The fourth proportional to 414,040.21, 621,072.61 and 114,542.86 is: 171,817.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,040.21 : 621,072.61 = 114,542.86 : x
  2. Step 2: Convert to fraction form
    414,040.21/621,072.61 = 114,542.86/x
  3. Step 3: Cross multiply
    414,040.21x = 621,072.61 × 114,542.86
  4. Step 4: Simplify right side
    414,040.21x = 71,139,432,986.84
  5. Step 5: Solve for x
    x = 71,139,432,986.84/414,040.21
  6. Step 6: Final answer
    x = 171,817.69

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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.