Finding the Fourth Proportional to 1,994,138.20, 2,987,708.10 and 1,637,219.80
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Solution
The fourth proportional to 1,994,138.20, 2,987,708.10 and 1,637,219.80 is: 2,452,956.80
Step by Step Solution
- Step 1: Write the proportion equation
1,994,138.20 : 2,987,708.10 = 1,637,219.80 : x - Step 2: Convert to fraction form
1,994,138.20/2,987,708.10 = 1,637,219.80/x - Step 3: Cross multiply
1,994,138.20x = 2,987,708.10 × 1,637,219.80 - Step 4: Simplify right side
1,994,138.20x = 4,891,534,857,940.38 - Step 5: Solve for x
x = 4,891,534,857,940.38/1,994,138.20 - Step 6: Final answer
x = 2,452,956.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.