Finding the Fourth Proportional to 682,920.63, 942,405.76 and 376,990.44
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Solution
The fourth proportional to 682,920.63, 942,405.76 and 376,990.44 is: 520,233.17
Step by Step Solution
- Step 1: Write the proportion equation
682,920.63 : 942,405.76 = 376,990.44 : x - Step 2: Convert to fraction form
682,920.63/942,405.76 = 376,990.44/x - Step 3: Cross multiply
682,920.63x = 942,405.76 × 376,990.44 - Step 4: Simplify right side
682,920.63x = 355,277,962,120.93 - Step 5: Solve for x
x = 355,277,962,120.93/682,920.63 - Step 6: Final answer
x = 520,233.17
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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.