Home / 720,791.60-1,081,725.96-271,955.12

Finding the Fourth Proportional to 720,791.60, 1,081,725.96 and 271,955.12

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Solution

The fourth proportional to 720,791.60, 1,081,725.96 and 271,955.12 is: 408,135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,791.60 : 1,081,725.96 = 271,955.12 : x
  2. Step 2: Convert to fraction form
    720,791.60/1,081,725.96 = 271,955.12/x
  3. Step 3: Cross multiply
    720,791.60x = 1,081,725.96 × 271,955.12
  4. Step 4: Simplify right side
    720,791.60x = 294,180,913,258.92
  5. Step 5: Solve for x
    x = 294,180,913,258.92/720,791.60
  6. Step 6: Final answer
    x = 408,135.88

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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.