Finding the Fourth Proportional to 831,539.49, 1,147,524.58 and 449,566.17
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Solution
The fourth proportional to 831,539.49, 1,147,524.58 and 449,566.17 is: 620,401.36
Step by Step Solution
- Step 1: Write the proportion equation
831,539.49 : 1,147,524.58 = 449,566.17 : x - Step 2: Convert to fraction form
831,539.49/1,147,524.58 = 449,566.17/x - Step 3: Cross multiply
831,539.49x = 1,147,524.58 × 449,566.17 - Step 4: Simplify right side
831,539.49x = 515,888,230,411.46 - Step 5: Solve for x
x = 515,888,230,411.46/831,539.49 - Step 6: Final answer
x = 620,401.36
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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.