Finding the Fourth Proportional to 420,636.40, 580,544.86 and 267,514.94
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Solution
The fourth proportional to 420,636.40, 580,544.86 and 267,514.94 is: 369,212.99
Step by Step Solution
- Step 1: Write the proportion equation
420,636.40 : 580,544.86 = 267,514.94 : x - Step 2: Convert to fraction form
420,636.40/580,544.86 = 267,514.94/x - Step 3: Cross multiply
420,636.40x = 580,544.86 × 267,514.94 - Step 4: Simplify right side
420,636.40x = 155,304,423,390.21 - Step 5: Solve for x
x = 155,304,423,390.21/420,636.40 - Step 6: Final answer
x = 369,212.99
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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.