Finding the Fourth Proportional to 5,318,943.36, 7,978,414.68 and 1,329,855.36
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Solution
The fourth proportional to 5,318,943.36, 7,978,414.68 and 1,329,855.36 is: 1,994,782.95
Step by Step Solution
- Step 1: Write the proportion equation
5,318,943.36 : 7,978,414.68 = 1,329,855.36 : x - Step 2: Convert to fraction form
5,318,943.36/7,978,414.68 = 1,329,855.36/x - Step 3: Cross multiply
5,318,943.36x = 7,978,414.68 × 1,329,855.36 - Step 4: Simplify right side
5,318,943.36x = 10,610,137,526,500.69 - Step 5: Solve for x
x = 10,610,137,526,500.69/5,318,943.36 - Step 6: Final answer
x = 1,994,782.95
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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.