Finding the Fourth Proportional to 712,025.26, 982,596.33 and 389,755.93
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Solution
The fourth proportional to 712,025.26, 982,596.33 and 389,755.93 is: 537,863.99
Step by Step Solution
- Step 1: Write the proportion equation
712,025.26 : 982,596.33 = 389,755.93 : x - Step 2: Convert to fraction form
712,025.26/982,596.33 = 389,755.93/x - Step 3: Cross multiply
712,025.26x = 982,596.33 × 389,755.93 - Step 4: Simplify right side
712,025.26x = 382,972,746,413.74 - Step 5: Solve for x
x = 382,972,746,413.74/712,025.26 - Step 6: Final answer
x = 537,863.99
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1.5x scale
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.