Finding the Fourth Proportional to 542,717.36, 748,938.80 and 300,960.92
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Solution
The fourth proportional to 542,717.36, 748,938.80 and 300,960.92 is: 415,319.88
Step by Step Solution
- Step 1: Write the proportion equation
542,717.36 : 748,938.80 = 300,960.92 : x - Step 2: Convert to fraction form
542,717.36/748,938.80 = 300,960.92/x - Step 3: Cross multiply
542,717.36x = 748,938.80 × 300,960.92 - Step 4: Simplify right side
542,717.36x = 225,401,310,271.70 - Step 5: Solve for x
x = 225,401,310,271.70/542,717.36 - Step 6: Final answer
x = 415,319.88
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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.