Finding the Fourth Proportional to 389,821.07, 537,961.84 and 228,792.26
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Solution
The fourth proportional to 389,821.07, 537,961.84 and 228,792.26 is: 315,738.46
Step by Step Solution
- Step 1: Write the proportion equation
389,821.07 : 537,961.84 = 228,792.26 : x - Step 2: Convert to fraction form
389,821.07/537,961.84 = 228,792.26/x - Step 3: Cross multiply
389,821.07x = 537,961.84 × 228,792.26 - Step 4: Simplify right side
389,821.07x = 123,081,505,940.28 - Step 5: Solve for x
x = 123,081,505,940.28/389,821.07 - Step 6: Final answer
x = 315,738.46
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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.