Home / 859,982.80-1,289,974.20-806,838.70

Finding the Fourth Proportional to 859,982.80, 1,289,974.20 and 806,838.70

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Solution

The fourth proportional to 859,982.80, 1,289,974.20 and 806,838.70 is: 1,210,258.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,982.80 : 1,289,974.20 = 806,838.70 : x
  2. Step 2: Convert to fraction form
    859,982.80/1,289,974.20 = 806,838.70/x
  3. Step 3: Cross multiply
    859,982.80x = 1,289,974.20 × 806,838.70
  4. Step 4: Simplify right side
    859,982.80x = 1,040,801,106,561.54
  5. Step 5: Solve for x
    x = 1,040,801,106,561.54/859,982.80
  6. Step 6: Final answer
    x = 1,210,258.05

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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.