Home / 1,379,341.70-2,069,310.33-419,872.32

Finding the Fourth Proportional to 1,379,341.70, 2,069,310.33 and 419,872.32

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Solution

The fourth proportional to 1,379,341.70, 2,069,310.33 and 419,872.32 is: 629,899.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,341.70 : 2,069,310.33 = 419,872.32 : x
  2. Step 2: Convert to fraction form
    1,379,341.70/2,069,310.33 = 419,872.32/x
  3. Step 3: Cross multiply
    1,379,341.70x = 2,069,310.33 × 419,872.32
  4. Step 4: Simplify right side
    1,379,341.70x = 868,846,129,057.07
  5. Step 5: Solve for x
    x = 868,846,129,057.07/1,379,341.70
  6. Step 6: Final answer
    x = 629,899.13

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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.