Finding the Fourth Proportional to 864,138.60, 1,296,207.90 and 303,229.80
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Solution
The fourth proportional to 864,138.60, 1,296,207.90 and 303,229.80 is: 454,844.70
Step by Step Solution
- Step 1: Write the proportion equation
864,138.60 : 1,296,207.90 = 303,229.80 : x - Step 2: Convert to fraction form
864,138.60/1,296,207.90 = 303,229.80/x - Step 3: Cross multiply
864,138.60x = 1,296,207.90 × 303,229.80 - Step 4: Simplify right side
864,138.60x = 393,048,862,275.42 - Step 5: Solve for x
x = 393,048,862,275.42/864,138.60 - Step 6: Final answer
x = 454,844.70
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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.