Finding the Fourth Proportional to 1,388,653.26, 2,079,616.68 and 960,991.08
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Solution
The fourth proportional to 1,388,653.26, 2,079,616.68 and 960,991.08 is: 1,439,159.17
Step by Step Solution
- Step 1: Write the proportion equation
1,388,653.26 : 2,079,616.68 = 960,991.08 : x - Step 2: Convert to fraction form
1,388,653.26/2,079,616.68 = 960,991.08/x - Step 3: Cross multiply
1,388,653.26x = 2,079,616.68 × 960,991.08 - Step 4: Simplify right side
1,388,653.26x = 1,998,493,079,299.21 - Step 5: Solve for x
x = 1,998,493,079,299.21/1,388,653.26 - Step 6: Final answer
x = 1,439,159.17
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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.