Home / 447,739.20-672,127.20-270,446.40

Finding the Fourth Proportional to 447,739.20, 672,127.20 and 270,446.40

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Solution

The fourth proportional to 447,739.20, 672,127.20 and 270,446.40 is: 405,982.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,739.20 : 672,127.20 = 270,446.40 : x
  2. Step 2: Convert to fraction form
    447,739.20/672,127.20 = 270,446.40/x
  3. Step 3: Cross multiply
    447,739.20x = 672,127.20 × 270,446.40
  4. Step 4: Simplify right side
    447,739.20x = 181,774,381,582.08
  5. Step 5: Solve for x
    x = 181,774,381,582.08/447,739.20
  6. Step 6: Final answer
    x = 405,982.73

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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.