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Finding the Fourth Proportional to 447,751.20, 672,145.20 and 270,458.40

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Solution

The fourth proportional to 447,751.20, 672,145.20 and 270,458.40 is: 406,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,751.20 : 672,145.20 = 270,458.40 : x
  2. Step 2: Convert to fraction form
    447,751.20/672,145.20 = 270,458.40/x
  3. Step 3: Cross multiply
    447,751.20x = 672,145.20 × 270,458.40
  4. Step 4: Simplify right side
    447,751.20x = 181,787,315,359.68
  5. Step 5: Solve for x
    x = 181,787,315,359.68/447,751.20
  6. Step 6: Final answer
    x = 406,000.73

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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.