Home / 3,318,418.84-4,978,661.74-1,188,521.42

Finding the Fourth Proportional to 3,318,418.84, 4,978,661.74 and 1,188,521.42

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Solution

The fourth proportional to 3,318,418.84, 4,978,661.74 and 1,188,521.42 is: 1,783,152.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318,418.84 : 4,978,661.74 = 1,188,521.42 : x
  2. Step 2: Convert to fraction form
    3,318,418.84/4,978,661.74 = 1,188,521.42/x
  3. Step 3: Cross multiply
    3,318,418.84x = 4,978,661.74 × 1,188,521.42
  4. Step 4: Simplify right side
    3,318,418.84x = 5,917,246,120,924.47
  5. Step 5: Solve for x
    x = 5,917,246,120,924.47/3,318,418.84
  6. Step 6: Final answer
    x = 1,783,152.28

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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.