Finding the Fourth Proportional to 1,086,140.10, 1,629,793.35 and 455,117.70
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Solution
The fourth proportional to 1,086,140.10, 1,629,793.35 and 455,117.70 is: 682,920.92
Step by Step Solution
- Step 1: Write the proportion equation
1,086,140.10 : 1,629,793.35 = 455,117.70 : x - Step 2: Convert to fraction form
1,086,140.10/1,629,793.35 = 455,117.70/x - Step 3: Cross multiply
1,086,140.10x = 1,629,793.35 × 455,117.70 - Step 4: Simplify right side
1,086,140.10x = 741,747,800,927.30 - Step 5: Solve for x
x = 741,747,800,927.30/1,086,140.10 - Step 6: Final answer
x = 682,920.92
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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.