Home / 851,314.35-1,276,934.63-211,604.55

Finding the Fourth Proportional to 851,314.35, 1,276,934.63 and 211,604.55

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Solution

The fourth proportional to 851,314.35, 1,276,934.63 and 211,604.55 is: 317,397.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,314.35 : 1,276,934.63 = 211,604.55 : x
  2. Step 2: Convert to fraction form
    851,314.35/1,276,934.63 = 211,604.55/x
  3. Step 3: Cross multiply
    851,314.35x = 1,276,934.63 × 211,604.55
  4. Step 4: Simplify right side
    851,314.35x = 270,205,179,096.80
  5. Step 5: Solve for x
    x = 270,205,179,096.80/851,314.35
  6. Step 6: Final answer
    x = 317,397.65

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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.