Finding the Fourth Proportional to 729,367.10, 1,093,722.60 and 279,938.60
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Solution
The fourth proportional to 729,367.10, 1,093,722.60 and 279,938.60 is: 419,781.99
Step by Step Solution
- Step 1: Write the proportion equation
729,367.10 : 1,093,722.60 = 279,938.60 : x - Step 2: Convert to fraction form
729,367.10/1,093,722.60 = 279,938.60/x - Step 3: Cross multiply
729,367.10x = 1,093,722.60 × 279,938.60 - Step 4: Simplify right side
729,367.10x = 306,175,173,432.36 - Step 5: Solve for x
x = 306,175,173,432.36/729,367.10 - Step 6: Final answer
x = 419,781.99
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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.