Home / 673,042.80-1,008,203.40-419,545.20

Finding the Fourth Proportional to 673,042.80, 1,008,203.40 and 419,545.20

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Solution

The fourth proportional to 673,042.80, 1,008,203.40 and 419,545.20 is: 628,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,042.80 : 1,008,203.40 = 419,545.20 : x
  2. Step 2: Convert to fraction form
    673,042.80/1,008,203.40 = 419,545.20/x
  3. Step 3: Cross multiply
    673,042.80x = 1,008,203.40 × 419,545.20
  4. Step 4: Simplify right side
    673,042.80x = 422,986,897,093.68
  5. Step 5: Solve for x
    x = 422,986,897,093.68/673,042.80
  6. Step 6: Final answer
    x = 628,469.54

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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.