Home / 393,514.20-589,383.18-275,711.40

Finding the Fourth Proportional to 393,514.20, 589,383.18 and 275,711.40

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Solution

The fourth proportional to 393,514.20, 589,383.18 and 275,711.40 is: 412,944.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,514.20 : 589,383.18 = 275,711.40 : x
  2. Step 2: Convert to fraction form
    393,514.20/589,383.18 = 275,711.40/x
  3. Step 3: Cross multiply
    393,514.20x = 589,383.18 × 275,711.40
  4. Step 4: Simplify right side
    393,514.20x = 162,499,661,694.25
  5. Step 5: Solve for x
    x = 162,499,661,694.25/393,514.20
  6. Step 6: Final answer
    x = 412,944.85

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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.