Finding the Fourth Proportional to 1,288,194.74, 1,932,292.14 and 341,639.30
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Solution
The fourth proportional to 1,288,194.74, 1,932,292.14 and 341,639.30 is: 512,458.96
Step by Step Solution
- Step 1: Write the proportion equation
1,288,194.74 : 1,932,292.14 = 341,639.30 : x - Step 2: Convert to fraction form
1,288,194.74/1,932,292.14 = 341,639.30/x - Step 3: Cross multiply
1,288,194.74x = 1,932,292.14 × 341,639.30 - Step 4: Simplify right side
1,288,194.74x = 660,146,934,105.10 - Step 5: Solve for x
x = 660,146,934,105.10/1,288,194.74 - Step 6: Final answer
x = 512,458.96
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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.