Home / 721,095.71-1,080,880.83-271,622.09

Finding the Fourth Proportional to 721,095.71, 1,080,880.83 and 271,622.09

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Solution

The fourth proportional to 721,095.71, 1,080,880.83 and 271,622.09 is: 407,145.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,095.71 : 1,080,880.83 = 271,622.09 : x
  2. Step 2: Convert to fraction form
    721,095.71/1,080,880.83 = 271,622.09/x
  3. Step 3: Cross multiply
    721,095.71x = 1,080,880.83 × 271,622.09
  4. Step 4: Simplify right side
    721,095.71x = 293,591,110,085.54
  5. Step 5: Solve for x
    x = 293,591,110,085.54/721,095.71
  6. Step 6: Final answer
    x = 407,145.83

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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.