Finding the Fourth Proportional to 1,993,951.20, 2,990,926.80 and 1,860,106.80
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Solution
The fourth proportional to 1,993,951.20, 2,990,926.80 and 1,860,106.80 is: 2,790,160.20
Step by Step Solution
- Step 1: Write the proportion equation
1,993,951.20 : 2,990,926.80 = 1,860,106.80 : x - Step 2: Convert to fraction form
1,993,951.20/2,990,926.80 = 1,860,106.80/x - Step 3: Cross multiply
1,993,951.20x = 2,990,926.80 × 1,860,106.80 - Step 4: Simplify right side
1,993,951.20x = 5,563,443,278,982.24 - Step 5: Solve for x
x = 5,563,443,278,982.24/1,993,951.20 - Step 6: Final answer
x = 2,790,160.20
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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.