Home / 326,617.38-489,735.40-126,704.18

Finding the Fourth Proportional to 326,617.38, 489,735.40 and 126,704.18

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Solution

The fourth proportional to 326,617.38, 489,735.40 and 126,704.18 is: 189,982.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,617.38 : 489,735.40 = 126,704.18 : x
  2. Step 2: Convert to fraction form
    326,617.38/489,735.40 = 126,704.18/x
  3. Step 3: Cross multiply
    326,617.38x = 489,735.40 × 126,704.18
  4. Step 4: Simplify right side
    326,617.38x = 62,051,522,273.97
  5. Step 5: Solve for x
    x = 62,051,522,273.97/326,617.38
  6. Step 6: Final answer
    x = 189,982.30

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1.5x scale

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.