Finding the Fourth Proportional to 1,993,651.60, 2,990,477.40 and 1,197,389.20
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Solution
The fourth proportional to 1,993,651.60, 2,990,477.40 and 1,197,389.20 is: 1,796,083.80
Step by Step Solution
- Step 1: Write the proportion equation
1,993,651.60 : 2,990,477.40 = 1,197,389.20 : x - Step 2: Convert to fraction form
1,993,651.60/2,990,477.40 = 1,197,389.20/x - Step 3: Cross multiply
1,993,651.60x = 2,990,477.40 × 1,197,389.20 - Step 4: Simplify right side
1,993,651.60x = 3,580,765,341,604.08 - Step 5: Solve for x
x = 3,580,765,341,604.08/1,993,651.60 - Step 6: Final answer
x = 1,796,083.80
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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.