Finding the Fourth Proportional to 2,148,578.19, 3,222,367.41 and 631,855.42
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Solution
The fourth proportional to 2,148,578.19, 3,222,367.41 and 631,855.42 is: 947,636.12
Step by Step Solution
- Step 1: Write the proportion equation
2,148,578.19 : 3,222,367.41 = 631,855.42 : x - Step 2: Convert to fraction form
2,148,578.19/3,222,367.41 = 631,855.42/x - Step 3: Cross multiply
2,148,578.19x = 3,222,367.41 × 631,855.42 - Step 4: Simplify right side
2,148,578.19x = 2,036,070,307,553.40 - Step 5: Solve for x
x = 2,036,070,307,553.40/2,148,578.19 - Step 6: Final answer
x = 947,636.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.