Home / 326,619.86-489,934.70-113,394.54

Finding the Fourth Proportional to 326,619.86, 489,934.70 and 113,394.54

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Solution

The fourth proportional to 326,619.86, 489,934.70 and 113,394.54 is: 170,093.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,619.86 : 489,934.70 = 113,394.54 : x
  2. Step 2: Convert to fraction form
    326,619.86/489,934.70 = 113,394.54/x
  3. Step 3: Cross multiply
    326,619.86x = 489,934.70 × 113,394.54
  4. Step 4: Simplify right side
    326,619.86x = 55,555,919,369.57
  5. Step 5: Solve for x
    x = 55,555,919,369.57/326,619.86
  6. Step 6: Final answer
    x = 170,093.52

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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.