Finding the Fourth Proportional to 1,000,108.79, 1,380,138.46 and 541,212.75
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Solution
The fourth proportional to 1,000,108.79, 1,380,138.46 and 541,212.75 is: 746,867.27
Step by Step Solution
- Step 1: Write the proportion equation
1,000,108.79 : 1,380,138.46 = 541,212.75 : x - Step 2: Convert to fraction form
1,000,108.79/1,380,138.46 = 541,212.75/x - Step 3: Cross multiply
1,000,108.79x = 1,380,138.46 × 541,212.75 - Step 4: Simplify right side
1,000,108.79x = 746,948,526,843.78 - Step 5: Solve for x
x = 746,948,526,843.78/1,000,108.79 - Step 6: Final answer
x = 746,867.27
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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.