Finding the Fourth Proportional to 1,993,043.80, 2,989,565.70 and 1,284,455.80
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Solution
The fourth proportional to 1,993,043.80, 2,989,565.70 and 1,284,455.80 is: 1,926,683.70
Step by Step Solution
- Step 1: Write the proportion equation
1,993,043.80 : 2,989,565.70 = 1,284,455.80 : x - Step 2: Convert to fraction form
1,993,043.80/2,989,565.70 = 1,284,455.80/x - Step 3: Cross multiply
1,993,043.80x = 2,989,565.70 × 1,284,455.80 - Step 4: Simplify right side
1,993,043.80x = 3,839,965,002,846.06 - Step 5: Solve for x
x = 3,839,965,002,846.06/1,993,043.80 - Step 6: Final answer
x = 1,926,683.70
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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.