Finding the Fourth Proportional to 1,994,021.80, 2,991,218.70 and 1,545,246.28
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Solution
The fourth proportional to 1,994,021.80, 2,991,218.70 and 1,545,246.28 is: 2,318,013.56
Step by Step Solution
- Step 1: Write the proportion equation
1,994,021.80 : 2,991,218.70 = 1,545,246.28 : x - Step 2: Convert to fraction form
1,994,021.80/2,991,218.70 = 1,545,246.28/x - Step 3: Cross multiply
1,994,021.80x = 2,991,218.70 × 1,545,246.28 - Step 4: Simplify right side
1,994,021.80x = 4,622,169,568,841.44 - Step 5: Solve for x
x = 4,622,169,568,841.44/1,994,021.80 - Step 6: Final answer
x = 2,318,013.56
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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.