Finding the Fourth Proportional to 1,264,391.64, 1,744,843.68 and 720,559.80
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Solution
The fourth proportional to 1,264,391.64, 1,744,843.68 and 720,559.80 is: 994,362.96
Step by Step Solution
- Step 1: Write the proportion equation
1,264,391.64 : 1,744,843.68 = 720,559.80 : x - Step 2: Convert to fraction form
1,264,391.64/1,744,843.68 = 720,559.80/x - Step 3: Cross multiply
1,264,391.64x = 1,744,843.68 × 720,559.80 - Step 4: Simplify right side
1,264,391.64x = 1,257,264,213,092.06 - Step 5: Solve for x
x = 1,257,264,213,092.06/1,264,391.64 - Step 6: Final answer
x = 994,362.96
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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.