Home / 806,912.20-1,212,992.70-571,882.60

Finding the Fourth Proportional to 806,912.20, 1,212,992.70 and 571,882.60

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Solution

The fourth proportional to 806,912.20, 1,212,992.70 and 571,882.60 is: 859,683.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,912.20 : 1,212,992.70 = 571,882.60 : x
  2. Step 2: Convert to fraction form
    806,912.20/1,212,992.70 = 571,882.60/x
  3. Step 3: Cross multiply
    806,912.20x = 1,212,992.70 × 571,882.60
  4. Step 4: Simplify right side
    806,912.20x = 693,689,419,057.02
  5. Step 5: Solve for x
    x = 693,689,419,057.02/806,912.20
  6. Step 6: Final answer
    x = 859,683.89

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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.