Finding the Fourth Proportional to 831,323.22, 1,147,225.38 and 449,349.99
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Solution
The fourth proportional to 831,323.22, 1,147,225.38 and 449,349.99 is: 620,102.63
Step by Step Solution
- Step 1: Write the proportion equation
831,323.22 : 1,147,225.38 = 449,349.99 : x - Step 2: Convert to fraction form
831,323.22/1,147,225.38 = 449,349.99/x - Step 3: Cross multiply
831,323.22x = 1,147,225.38 × 449,349.99 - Step 4: Simplify right side
831,323.22x = 515,505,713,030.75 - Step 5: Solve for x
x = 515,505,713,030.75/831,323.22 - Step 6: Final answer
x = 620,102.63
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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.