Home / 327,619.80-491,429.40-90,962.40

Finding the Fourth Proportional to 327,619.80, 491,429.40 and 90,962.40

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Solution

The fourth proportional to 327,619.80, 491,429.40 and 90,962.40 is: 136,443.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,619.80 : 491,429.40 = 90,962.40 : x
  2. Step 2: Convert to fraction form
    327,619.80/491,429.40 = 90,962.40/x
  3. Step 3: Cross multiply
    327,619.80x = 491,429.40 × 90,962.40
  4. Step 4: Simplify right side
    327,619.80x = 44,701,597,654.56
  5. Step 5: Solve for x
    x = 44,701,597,654.56/327,619.80
  6. Step 6: Final answer
    x = 136,443.52

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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.