Home / 998,580.80-1,497,919.80-278,921.72

Finding the Fourth Proportional to 998,580.80, 1,497,919.80 and 278,921.72

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Solution

The fourth proportional to 998,580.80, 1,497,919.80 and 278,921.72 is: 418,396.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,580.80 : 1,497,919.80 = 278,921.72 : x
  2. Step 2: Convert to fraction form
    998,580.80/1,497,919.80 = 278,921.72/x
  3. Step 3: Cross multiply
    998,580.80x = 1,497,919.80 × 278,921.72
  4. Step 4: Simplify right side
    998,580.80x = 417,802,367,038.06
  5. Step 5: Solve for x
    x = 417,802,367,038.06/998,580.80
  6. Step 6: Final answer
    x = 418,396.15

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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.