Home / 721,065.11-1,080,834.93-271,591.50

Finding the Fourth Proportional to 721,065.11, 1,080,834.93 and 271,591.50

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Solution

The fourth proportional to 721,065.11, 1,080,834.93 and 271,591.50 is: 407,099.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,065.11 : 1,080,834.93 = 271,591.50 : x
  2. Step 2: Convert to fraction form
    721,065.11/1,080,834.93 = 271,591.50/x
  3. Step 3: Cross multiply
    721,065.11x = 1,080,834.93 × 271,591.50
  4. Step 4: Simplify right side
    721,065.11x = 293,545,579,891.10
  5. Step 5: Solve for x
    x = 293,545,579,891.10/721,065.11
  6. Step 6: Final answer
    x = 407,099.97

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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.