Finding the Fourth Proportional to 2,980,576.80, 4,471,448.40 and 1,274,716.80
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Solution
The fourth proportional to 2,980,576.80, 4,471,448.40 and 1,274,716.80 is: 1,912,324.62
Step by Step Solution
- Step 1: Write the proportion equation
2,980,576.80 : 4,471,448.40 = 1,274,716.80 : x - Step 2: Convert to fraction form
2,980,576.80/4,471,448.40 = 1,274,716.80/x - Step 3: Cross multiply
2,980,576.80x = 4,471,448.40 × 1,274,716.80 - Step 4: Simplify right side
2,980,576.80x = 5,699,830,395,813.12 - Step 5: Solve for x
x = 5,699,830,395,813.12/2,980,576.80 - Step 6: Final answer
x = 1,912,324.62
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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.