Home / 414,216.82-621,326.85-126,031.33

Finding the Fourth Proportional to 414,216.82, 621,326.85 and 126,031.33

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Solution

The fourth proportional to 414,216.82, 621,326.85 and 126,031.33 is: 189,047.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,216.82 : 621,326.85 = 126,031.33 : x
  2. Step 2: Convert to fraction form
    414,216.82/621,326.85 = 126,031.33/x
  3. Step 3: Cross multiply
    414,216.82x = 621,326.85 × 126,031.33
  4. Step 4: Simplify right side
    414,216.82x = 78,306,649,270.21
  5. Step 5: Solve for x
    x = 78,306,649,270.21/414,216.82
  6. Step 6: Final answer
    x = 189,047.49

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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.