Finding the Fourth Proportional to 641,198.68, 884,920.62 and 369,276.28
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Solution
The fourth proportional to 641,198.68, 884,920.62 and 369,276.28 is: 509,639.53
Step by Step Solution
- Step 1: Write the proportion equation
641,198.68 : 884,920.62 = 369,276.28 : x - Step 2: Convert to fraction form
641,198.68/884,920.62 = 369,276.28/x - Step 3: Cross multiply
641,198.68x = 884,920.62 × 369,276.28 - Step 4: Simplify right side
641,198.68x = 326,780,194,648.89 - Step 5: Solve for x
x = 326,780,194,648.89/641,198.68 - Step 6: Final answer
x = 509,639.53
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1.5x scale
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.