Finding the Fourth Proportional to 720,974.74, 994,951.58 and 398,706.52
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Solution
The fourth proportional to 720,974.74, 994,951.58 and 398,706.52 is: 550,218.56
Step by Step Solution
- Step 1: Write the proportion equation
720,974.74 : 994,951.58 = 398,706.52 : x - Step 2: Convert to fraction form
720,974.74/994,951.58 = 398,706.52/x - Step 3: Cross multiply
720,974.74x = 994,951.58 × 398,706.52 - Step 4: Simplify right side
720,974.74x = 396,693,682,030.30 - Step 5: Solve for x
x = 396,693,682,030.30/720,974.74 - Step 6: Final answer
x = 550,218.56
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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.