Home / 326,618.14-489,736.50-126,704.92

Finding the Fourth Proportional to 326,618.14, 489,736.50 and 126,704.92

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Solution

The fourth proportional to 326,618.14, 489,736.50 and 126,704.92 is: 189,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,618.14 : 489,736.50 = 126,704.92 : x
  2. Step 2: Convert to fraction form
    326,618.14/489,736.50 = 126,704.92/x
  3. Step 3: Cross multiply
    326,618.14x = 489,736.50 × 126,704.92
  4. Step 4: Simplify right side
    326,618.14x = 62,052,024,053.58
  5. Step 5: Solve for x
    x = 62,052,024,053.58/326,618.14
  6. Step 6: Final answer
    x = 189,983.40

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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.