Finding the Fourth Proportional to 794,138.60, 1,191,207.90 and 261,741.80
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Solution
The fourth proportional to 794,138.60, 1,191,207.90 and 261,741.80 is: 392,612.70
Step by Step Solution
- Step 1: Write the proportion equation
794,138.60 : 1,191,207.90 = 261,741.80 : x - Step 2: Convert to fraction form
794,138.60/1,191,207.90 = 261,741.80/x - Step 3: Cross multiply
794,138.60x = 1,191,207.90 × 261,741.80 - Step 4: Simplify right side
794,138.60x = 311,788,899,920.22 - Step 5: Solve for x
x = 311,788,899,920.22/794,138.60 - Step 6: Final answer
x = 392,612.70
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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.