Home / 327,627.90-491,442.12-90,970.56

Finding the Fourth Proportional to 327,627.90, 491,442.12 and 90,970.56

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Solution

The fourth proportional to 327,627.90, 491,442.12 and 90,970.56 is: 136,455.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,627.90 : 491,442.12 = 90,970.56 : x
  2. Step 2: Convert to fraction form
    327,627.90/491,442.12 = 90,970.56/x
  3. Step 3: Cross multiply
    327,627.90x = 491,442.12 × 90,970.56
  4. Step 4: Simplify right side
    327,627.90x = 44,706,764,863.99
  5. Step 5: Solve for x
    x = 44,706,764,863.99/327,627.90
  6. Step 6: Final answer
    x = 136,455.91

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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.