Finding the Fourth Proportional to 723,639.69, 1,085,543.37 and 274,695.98
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Solution
The fourth proportional to 723,639.69, 1,085,543.37 and 274,695.98 is: 412,075.79
Step by Step Solution
- Step 1: Write the proportion equation
723,639.69 : 1,085,543.37 = 274,695.98 : x - Step 2: Convert to fraction form
723,639.69/1,085,543.37 = 274,695.98/x - Step 3: Cross multiply
723,639.69x = 1,085,543.37 × 274,695.98 - Step 4: Simplify right side
723,639.69x = 298,194,394,426.94 - Step 5: Solve for x
x = 298,194,394,426.94/723,639.69 - Step 6: Final answer
x = 412,075.79
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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.