Finding the Fourth Proportional to 682,921.63, 942,407.14 and 376,991.44
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Solution
The fourth proportional to 682,921.63, 942,407.14 and 376,991.44 is: 520,234.55
Step by Step Solution
- Step 1: Write the proportion equation
682,921.63 : 942,407.14 = 376,991.44 : x - Step 2: Convert to fraction form
682,921.63/942,407.14 = 376,991.44/x - Step 3: Cross multiply
682,921.63x = 942,407.14 × 376,991.44 - Step 4: Simplify right side
682,921.63x = 355,279,424,774.88 - Step 5: Solve for x
x = 355,279,424,774.88/682,921.63 - Step 6: Final answer
x = 520,234.55
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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.