Home / 851,324.20-1,276,949.39-211,614.40

Finding the Fourth Proportional to 851,324.20, 1,276,949.39 and 211,614.40

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Solution

The fourth proportional to 851,324.20, 1,276,949.39 and 211,614.40 is: 317,412.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,324.20 : 1,276,949.39 = 211,614.40 : x
  2. Step 2: Convert to fraction form
    851,324.20/1,276,949.39 = 211,614.40/x
  3. Step 3: Cross multiply
    851,324.20x = 1,276,949.39 × 211,614.40
  4. Step 4: Simplify right side
    851,324.20x = 270,220,879,533.33
  5. Step 5: Solve for x
    x = 270,220,879,533.33/851,324.20
  6. Step 6: Final answer
    x = 317,412.43

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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.