Home / 998,906.80-1,498,578.90-399,717.40

Finding the Fourth Proportional to 998,906.80, 1,498,578.90 and 399,717.40

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Solution

The fourth proportional to 998,906.80, 1,498,578.90 and 399,717.40 is: 599,663.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,906.80 : 1,498,578.90 = 399,717.40 : x
  2. Step 2: Convert to fraction form
    998,906.80/1,498,578.90 = 399,717.40/x
  3. Step 3: Cross multiply
    998,906.80x = 1,498,578.90 × 399,717.40
  4. Step 4: Simplify right side
    998,906.80x = 599,008,061,602.86
  5. Step 5: Solve for x
    x = 599,008,061,602.86/998,906.80
  6. Step 6: Final answer
    x = 599,663.61

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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.