Finding the Fourth Proportional to 1,247,539.92, 1,721,603.88 and 674,578.72
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Solution
The fourth proportional to 1,247,539.92, 1,721,603.88 and 674,578.72 is: 930,917.99
Step by Step Solution
- Step 1: Write the proportion equation
1,247,539.92 : 1,721,603.88 = 674,578.72 : x - Step 2: Convert to fraction form
1,247,539.92/1,721,603.88 = 674,578.72/x - Step 3: Cross multiply
1,247,539.92x = 1,721,603.88 × 674,578.72 - Step 4: Simplify right side
1,247,539.92x = 1,161,357,350,608.70 - Step 5: Solve for x
x = 1,161,357,350,608.70/1,247,539.92 - Step 6: Final answer
x = 930,917.99
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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.