Home / 673,039.80-1,008,198.90-419,542.20

Finding the Fourth Proportional to 673,039.80, 1,008,198.90 and 419,542.20

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Solution

The fourth proportional to 673,039.80, 1,008,198.90 and 419,542.20 is: 628,465.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,039.80 : 1,008,198.90 = 419,542.20 : x
  2. Step 2: Convert to fraction form
    673,039.80/1,008,198.90 = 419,542.20/x
  3. Step 3: Cross multiply
    673,039.80x = 1,008,198.90 × 419,542.20
  4. Step 4: Simplify right side
    673,039.80x = 422,981,984,543.58
  5. Step 5: Solve for x
    x = 422,981,984,543.58/673,039.80
  6. Step 6: Final answer
    x = 628,465.04

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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.