Home / 998,891.77-1,497,871.82-518,990.56

Finding the Fourth Proportional to 998,891.77, 1,497,871.82 and 518,990.56

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Solution

The fourth proportional to 998,891.77, 1,497,871.82 and 518,990.56 is: 778,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,891.77 : 1,497,871.82 = 518,990.56 : x
  2. Step 2: Convert to fraction form
    998,891.77/1,497,871.82 = 518,990.56/x
  3. Step 3: Cross multiply
    998,891.77x = 1,497,871.82 × 518,990.56
  4. Step 4: Simplify right side
    998,891.77x = 777,381,324,585.71
  5. Step 5: Solve for x
    x = 777,381,324,585.71/998,891.77
  6. Step 6: Final answer
    x = 778,243.80

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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.