Finding the Fourth Proportional to 1,207,146.44, 1,665,237.42 and 819,981.80
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Solution
The fourth proportional to 1,207,146.44, 1,665,237.42 and 819,981.80 is: 1,131,150.56
Step by Step Solution
- Step 1: Write the proportion equation
1,207,146.44 : 1,665,237.42 = 819,981.80 : x - Step 2: Convert to fraction form
1,207,146.44/1,665,237.42 = 819,981.80/x - Step 3: Cross multiply
1,207,146.44x = 1,665,237.42 × 819,981.80 - Step 4: Simplify right side
1,207,146.44x = 1,365,464,377,078.96 - Step 5: Solve for x
x = 1,365,464,377,078.96/1,207,146.44 - Step 6: Final answer
x = 1,131,150.56
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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.