Finding the Fourth Proportional to 2,661,202.80, 3,991,804.20 and 1,821,394.80
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Solution
The fourth proportional to 2,661,202.80, 3,991,804.20 and 1,821,394.80 is: 2,732,092.20
Step by Step Solution
- Step 1: Write the proportion equation
2,661,202.80 : 3,991,804.20 = 1,821,394.80 : x - Step 2: Convert to fraction form
2,661,202.80/3,991,804.20 = 1,821,394.80/x - Step 3: Cross multiply
2,661,202.80x = 3,991,804.20 × 1,821,394.80 - Step 4: Simplify right side
2,661,202.80x = 7,270,651,412,498.16 - Step 5: Solve for x
x = 7,270,651,412,498.16/2,661,202.80 - Step 6: Final answer
x = 2,732,092.20
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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.