Home / 1,379,359.44-2,069,336.94-419,890.05

Finding the Fourth Proportional to 1,379,359.44, 2,069,336.94 and 419,890.05

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Solution

The fourth proportional to 1,379,359.44, 2,069,336.94 and 419,890.05 is: 629,925.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,359.44 : 2,069,336.94 = 419,890.05 : x
  2. Step 2: Convert to fraction form
    1,379,359.44/2,069,336.94 = 419,890.05/x
  3. Step 3: Cross multiply
    1,379,359.44x = 2,069,336.94 × 419,890.05
  4. Step 4: Simplify right side
    1,379,359.44x = 868,893,991,203.45
  5. Step 5: Solve for x
    x = 868,893,991,203.45/1,379,359.44
  6. Step 6: Final answer
    x = 629,925.72

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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.