Home / 326,618.27-489,736.69-126,705.05

Finding the Fourth Proportional to 326,618.27, 489,736.69 and 126,705.05

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Solution

The fourth proportional to 326,618.27, 489,736.69 and 126,705.05 is: 189,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,618.27 : 489,736.69 = 126,705.05 : x
  2. Step 2: Convert to fraction form
    326,618.27/489,736.69 = 126,705.05/x
  3. Step 3: Cross multiply
    326,618.27x = 489,736.69 × 126,705.05
  4. Step 4: Simplify right side
    326,618.27x = 62,052,109,027.84
  5. Step 5: Solve for x
    x = 62,052,109,027.84/326,618.27
  6. Step 6: Final answer
    x = 189,983.59

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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.