Finding the Fourth Proportional to 2,629,124.20, 3,943,815.90 and 1,369,412.20
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Solution
The fourth proportional to 2,629,124.20, 3,943,815.90 and 1,369,412.20 is: 2,054,185.80
Step by Step Solution
- Step 1: Write the proportion equation
2,629,124.20 : 3,943,815.90 = 1,369,412.20 : x - Step 2: Convert to fraction form
2,629,124.20/3,943,815.90 = 1,369,412.20/x - Step 3: Cross multiply
2,629,124.20x = 3,943,815.90 × 1,369,412.20 - Step 4: Simplify right side
2,629,124.20x = 5,400,709,608,013.98 - Step 5: Solve for x
x = 5,400,709,608,013.98/2,629,124.20 - Step 6: Final answer
x = 2,054,185.80
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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.