Home / 414,212.32-621,320.10-126,026.81

Finding the Fourth Proportional to 414,212.32, 621,320.10 and 126,026.81

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Solution

The fourth proportional to 414,212.32, 621,320.10 and 126,026.81 is: 189,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,212.32 : 621,320.10 = 126,026.81 : x
  2. Step 2: Convert to fraction form
    414,212.32/621,320.10 = 126,026.81/x
  3. Step 3: Cross multiply
    414,212.32x = 621,320.10 × 126,026.81
  4. Step 4: Simplify right side
    414,212.32x = 78,302,990,191.88
  5. Step 5: Solve for x
    x = 78,302,990,191.88/414,212.32
  6. Step 6: Final answer
    x = 189,040.71

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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.