Home / 756,190.14-1,134,809.09-300,734.70

Finding the Fourth Proportional to 756,190.14, 1,134,809.09 and 300,734.70

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Solution

The fourth proportional to 756,190.14, 1,134,809.09 and 300,734.70 is: 451,310.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,190.14 : 1,134,809.09 = 300,734.70 : x
  2. Step 2: Convert to fraction form
    756,190.14/1,134,809.09 = 300,734.70/x
  3. Step 3: Cross multiply
    756,190.14x = 1,134,809.09 × 300,734.70
  4. Step 4: Simplify right side
    756,190.14x = 341,276,471,238.42
  5. Step 5: Solve for x
    x = 341,276,471,238.42/756,190.14
  6. Step 6: Final answer
    x = 451,310.40

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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.