Finding the Fourth Proportional to 386,319.84, 579,361.84 and 267,142.92
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Solution
The fourth proportional to 386,319.84, 579,361.84 and 267,142.92 is: 400,632.84
Step by Step Solution
- Step 1: Write the proportion equation
386,319.84 : 579,361.84 = 267,142.92 : x - Step 2: Convert to fraction form
386,319.84/579,361.84 = 267,142.92/x - Step 3: Cross multiply
386,319.84x = 579,361.84 × 267,142.92 - Step 4: Simplify right side
386,319.84x = 154,772,413,674.17 - Step 5: Solve for x
x = 154,772,413,674.17/386,319.84 - Step 6: Final answer
x = 400,632.84
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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.