Home / 1,366,396.86-2,049,619.59-419,775.78

Finding the Fourth Proportional to 1,366,396.86, 2,049,619.59 and 419,775.78

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Solution

The fourth proportional to 1,366,396.86, 2,049,619.59 and 419,775.78 is: 629,671.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,366,396.86 : 2,049,619.59 = 419,775.78 : x
  2. Step 2: Convert to fraction form
    1,366,396.86/2,049,619.59 = 419,775.78/x
  3. Step 3: Cross multiply
    1,366,396.86x = 2,049,619.59 × 419,775.78
  4. Step 4: Simplify right side
    1,366,396.86x = 860,380,662,095.53
  5. Step 5: Solve for x
    x = 860,380,662,095.53/1,366,396.86
  6. Step 6: Final answer
    x = 629,671.14

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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.