Home / 1,119,942.70-1,679,920.74-278,494.45

Finding the Fourth Proportional to 1,119,942.70, 1,679,920.74 and 278,494.45

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Solution

The fourth proportional to 1,119,942.70, 1,679,920.74 and 278,494.45 is: 417,743.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,942.70 : 1,679,920.74 = 278,494.45 : x
  2. Step 2: Convert to fraction form
    1,119,942.70/1,679,920.74 = 278,494.45/x
  3. Step 3: Cross multiply
    1,119,942.70x = 1,679,920.74 × 278,494.45
  4. Step 4: Simplify right side
    1,119,942.70x = 467,848,598,330.09
  5. Step 5: Solve for x
    x = 467,848,598,330.09/1,119,942.70
  6. Step 6: Final answer
    x = 417,743.34

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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.