Finding the Fourth Proportional to 420,704.49, 580,569.88 and 229,716.53
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Solution
The fourth proportional to 420,704.49, 580,569.88 and 229,716.53 is: 317,007.55
Step by Step Solution
- Step 1: Write the proportion equation
420,704.49 : 580,569.88 = 229,716.53 : x - Step 2: Convert to fraction form
420,704.49/580,569.88 = 229,716.53/x - Step 3: Cross multiply
420,704.49x = 580,569.88 × 229,716.53 - Step 4: Simplify right side
420,704.49x = 133,366,498,256.12 - Step 5: Solve for x
x = 133,366,498,256.12/420,704.49 - Step 6: Final answer
x = 317,007.55
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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.