Finding the Fourth Proportional to 863,995.60, 1,295,071.80 and 331,310.80
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Solution
The fourth proportional to 863,995.60, 1,295,071.80 and 331,310.80 is: 496,612.80
Step by Step Solution
- Step 1: Write the proportion equation
863,995.60 : 1,295,071.80 = 331,310.80 : x - Step 2: Convert to fraction form
863,995.60/1,295,071.80 = 331,310.80/x - Step 3: Cross multiply
863,995.60x = 1,295,071.80 × 331,310.80 - Step 4: Simplify right side
863,995.60x = 429,071,274,115.44 - Step 5: Solve for x
x = 429,071,274,115.44/863,995.60 - Step 6: Final answer
x = 496,612.80
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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.