Finding the Fourth Proportional to 420,634.14, 580,541.76 and 267,512.69
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Solution
The fourth proportional to 420,634.14, 580,541.76 and 267,512.69 is: 369,209.89
Step by Step Solution
- Step 1: Write the proportion equation
420,634.14 : 580,541.76 = 267,512.69 : x - Step 2: Convert to fraction form
420,634.14/580,541.76 = 267,512.69/x - Step 3: Cross multiply
420,634.14x = 580,541.76 × 267,512.69 - Step 4: Simplify right side
420,634.14x = 155,302,284,972.23 - Step 5: Solve for x
x = 155,302,284,972.23/420,634.14 - Step 6: Final answer
x = 369,209.89
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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.