Finding the Fourth Proportional to 993,608.70, 1,490,413.05 and 394,712.70
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Solution
The fourth proportional to 993,608.70, 1,490,413.05 and 394,712.70 is: 592,069.05
Step by Step Solution
- Step 1: Write the proportion equation
993,608.70 : 1,490,413.05 = 394,712.70 : x - Step 2: Convert to fraction form
993,608.70/1,490,413.05 = 394,712.70/x - Step 3: Cross multiply
993,608.70x = 1,490,413.05 × 394,712.70 - Step 4: Simplify right side
993,608.70x = 588,284,959,080.74 - Step 5: Solve for x
x = 588,284,959,080.74/993,608.70 - Step 6: Final answer
x = 592,069.05
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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.