Home / 1,119,942.45-1,679,920.37-278,494.20

Finding the Fourth Proportional to 1,119,942.45, 1,679,920.37 and 278,494.20

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Solution

The fourth proportional to 1,119,942.45, 1,679,920.37 and 278,494.20 is: 417,742.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,942.45 : 1,679,920.37 = 278,494.20 : x
  2. Step 2: Convert to fraction form
    1,119,942.45/1,679,920.37 = 278,494.20/x
  3. Step 3: Cross multiply
    1,119,942.45x = 1,679,920.37 × 278,494.20
  4. Step 4: Simplify right side
    1,119,942.45x = 467,848,079,506.85
  5. Step 5: Solve for x
    x = 467,848,079,506.85/1,119,942.45
  6. Step 6: Final answer
    x = 417,742.96

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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.