Home / 414,211.82-621,319.35-126,026.31

Finding the Fourth Proportional to 414,211.82, 621,319.35 and 126,026.31

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Solution

The fourth proportional to 414,211.82, 621,319.35 and 126,026.31 is: 189,039.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,211.82 : 621,319.35 = 126,026.31 : x
  2. Step 2: Convert to fraction form
    414,211.82/621,319.35 = 126,026.31/x
  3. Step 3: Cross multiply
    414,211.82x = 621,319.35 × 126,026.31
  4. Step 4: Simplify right side
    414,211.82x = 78,302,585,012.10
  5. Step 5: Solve for x
    x = 78,302,585,012.10/414,211.82
  6. Step 6: Final answer
    x = 189,039.96

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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.