Home / 998,579.80-1,497,918.30-278,920.72

Finding the Fourth Proportional to 998,579.80, 1,497,918.30 and 278,920.72

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Solution

The fourth proportional to 998,579.80, 1,497,918.30 and 278,920.72 is: 418,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,579.80 : 1,497,918.30 = 278,920.72 : x
  2. Step 2: Convert to fraction form
    998,579.80/1,497,918.30 = 278,920.72/x
  3. Step 3: Cross multiply
    998,579.80x = 1,497,918.30 × 278,920.72
  4. Step 4: Simplify right side
    998,579.80x = 417,800,450,737.18
  5. Step 5: Solve for x
    x = 417,800,450,737.18/998,579.80
  6. Step 6: Final answer
    x = 418,394.65

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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.