Finding the Fourth Proportional to 1,519,378.76, 2,106,331.75 and 1,438,481.63
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Solution
The fourth proportional to 1,519,378.76, 2,106,331.75 and 1,438,481.63 is: 1,994,183.15
Step by Step Solution
- Step 1: Write the proportion equation
1,519,378.76 : 2,106,331.75 = 1,438,481.63 : x - Step 2: Convert to fraction form
1,519,378.76/2,106,331.75 = 1,438,481.63/x - Step 3: Cross multiply
1,519,378.76x = 2,106,331.75 × 1,438,481.63 - Step 4: Simplify right side
1,519,378.76x = 3,029,919,528,033.22 - Step 5: Solve for x
x = 3,029,919,528,033.22/1,519,378.76 - Step 6: Final answer
x = 1,994,183.15
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.