Finding the Fourth Proportional to 3,208,769.51, 4,428,105.75 and 1,738,676.99
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Solution
The fourth proportional to 3,208,769.51, 4,428,105.75 and 1,738,676.99 is: 2,399,376.32
Step by Step Solution
- Step 1: Write the proportion equation
3,208,769.51 : 4,428,105.75 = 1,738,676.99 : x - Step 2: Convert to fraction form
3,208,769.51/4,428,105.75 = 1,738,676.99/x - Step 3: Cross multiply
3,208,769.51x = 4,428,105.75 × 1,738,676.99 - Step 4: Simplify right side
3,208,769.51x = 7,699,045,554,671.16 - Step 5: Solve for x
x = 7,699,045,554,671.16/3,208,769.51 - Step 6: Final answer
x = 2,399,376.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.