Finding the Fourth Proportional to 2,990,317.55, 4,486,163.21 and 860,419.31
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Solution
The fourth proportional to 2,990,317.55, 4,486,163.21 and 860,419.31 is: 1,290,826.60
Step by Step Solution
- Step 1: Write the proportion equation
2,990,317.55 : 4,486,163.21 = 860,419.31 : x - Step 2: Convert to fraction form
2,990,317.55/4,486,163.21 = 860,419.31/x - Step 3: Cross multiply
2,990,317.55x = 4,486,163.21 × 860,419.31 - Step 4: Simplify right side
2,990,317.55x = 3,859,981,449,393.49 - Step 5: Solve for x
x = 3,859,981,449,393.49/2,990,317.55 - Step 6: Final answer
x = 1,290,826.60
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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.