Finding the Fourth Proportional to 1,218,273.75, 1,681,231.08 and 674,418.63
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Solution
The fourth proportional to 1,218,273.75, 1,681,231.08 and 674,418.63 is: 930,705.07
Step by Step Solution
- Step 1: Write the proportion equation
1,218,273.75 : 1,681,231.08 = 674,418.63 : x - Step 2: Convert to fraction form
1,218,273.75/1,681,231.08 = 674,418.63/x - Step 3: Cross multiply
1,218,273.75x = 1,681,231.08 × 674,418.63 - Step 4: Simplify right side
1,218,273.75x = 1,133,853,561,687.02 - Step 5: Solve for x
x = 1,133,853,561,687.02/1,218,273.75 - Step 6: Final answer
x = 930,705.07
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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.