Home / 327,639.67-491,459.70-90,982.37

Finding the Fourth Proportional to 327,639.67, 491,459.70 and 90,982.37

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Solution

The fourth proportional to 327,639.67, 491,459.70 and 90,982.37 is: 136,473.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,639.67 : 491,459.70 = 90,982.37 : x
  2. Step 2: Convert to fraction form
    327,639.67/491,459.70 = 90,982.37/x
  3. Step 3: Cross multiply
    327,639.67x = 491,459.70 × 90,982.37
  4. Step 4: Simplify right side
    327,639.67x = 44,714,169,835.32
  5. Step 5: Solve for x
    x = 44,714,169,835.32/327,639.67
  6. Step 6: Final answer
    x = 136,473.61

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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.