Finding the Fourth Proportional to 765,638.40, 1,148,623.68 and 233,145.48
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Solution
The fourth proportional to 765,638.40, 1,148,623.68 and 233,145.48 is: 349,768.79
Step by Step Solution
- Step 1: Write the proportion equation
765,638.40 : 1,148,623.68 = 233,145.48 : x - Step 2: Convert to fraction form
765,638.40/1,148,623.68 = 233,145.48/x - Step 3: Cross multiply
765,638.40x = 1,148,623.68 × 233,145.48 - Step 4: Simplify right side
765,638.40x = 267,796,419,212.97 - Step 5: Solve for x
x = 267,796,419,212.97/765,638.40 - Step 6: Final answer
x = 349,768.79
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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.