Home / 1,379,343.20-2,069,312.58-419,873.82

Finding the Fourth Proportional to 1,379,343.20, 2,069,312.58 and 419,873.82

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Solution

The fourth proportional to 1,379,343.20, 2,069,312.58 and 419,873.82 is: 629,901.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,343.20 : 2,069,312.58 = 419,873.82 : x
  2. Step 2: Convert to fraction form
    1,379,343.20/2,069,312.58 = 419,873.82/x
  3. Step 3: Cross multiply
    1,379,343.20x = 2,069,312.58 × 419,873.82
  4. Step 4: Simplify right side
    1,379,343.20x = 868,850,177,738.66
  5. Step 5: Solve for x
    x = 868,850,177,738.66/1,379,343.20
  6. Step 6: Final answer
    x = 629,901.38

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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.