Finding the Fourth Proportional to 932,714.20, 1,397,321.70 and 869,728.60
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Solution
The fourth proportional to 932,714.20, 1,397,321.70 and 869,728.60 is: 1,302,961.45
Step by Step Solution
- Step 1: Write the proportion equation
932,714.20 : 1,397,321.70 = 869,728.60 : x - Step 2: Convert to fraction form
932,714.20/1,397,321.70 = 869,728.60/x - Step 3: Cross multiply
932,714.20x = 1,397,321.70 × 869,728.60 - Step 4: Simplify right side
932,714.20x = 1,215,290,645,890.62 - Step 5: Solve for x
x = 1,215,290,645,890.62/932,714.20 - Step 6: Final answer
x = 1,302,961.45
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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.