Finding the Fourth Proportional to 831,080.48, 1,146,891.06 and 449,107.26
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Solution
The fourth proportional to 831,080.48, 1,146,891.06 and 449,107.26 is: 619,768.02
Step by Step Solution
- Step 1: Write the proportion equation
831,080.48 : 1,146,891.06 = 449,107.26 : x - Step 2: Convert to fraction form
831,080.48/1,146,891.06 = 449,107.26/x - Step 3: Cross multiply
831,080.48x = 1,146,891.06 × 449,107.26 - Step 4: Simplify right side
831,080.48x = 515,077,101,475.10 - Step 5: Solve for x
x = 515,077,101,475.10/831,080.48 - Step 6: Final answer
x = 619,768.02
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1.5x scale
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.