Finding the Fourth Proportional to 1,369,049.30, 1,889,358.81 and 788,358.62
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Solution
The fourth proportional to 1,369,049.30, 1,889,358.81 and 788,358.62 is: 1,087,975.65
Step by Step Solution
- Step 1: Write the proportion equation
1,369,049.30 : 1,889,358.81 = 788,358.62 : x - Step 2: Convert to fraction form
1,369,049.30/1,889,358.81 = 788,358.62/x - Step 3: Cross multiply
1,369,049.30x = 1,889,358.81 × 788,358.62 - Step 4: Simplify right side
1,369,049.30x = 1,489,492,304,136.44 - Step 5: Solve for x
x = 1,489,492,304,136.44/1,369,049.30 - Step 6: Final answer
x = 1,087,975.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.