Finding the Fourth Proportional to 831,639.42, 1,147,660.83 and 469,062.18
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Solution
The fourth proportional to 831,639.42, 1,147,660.83 and 469,062.18 is: 647,304.92
Step by Step Solution
- Step 1: Write the proportion equation
831,639.42 : 1,147,660.83 = 469,062.18 : x - Step 2: Convert to fraction form
831,639.42/1,147,660.83 = 469,062.18/x - Step 3: Cross multiply
831,639.42x = 1,147,660.83 × 469,062.18 - Step 4: Simplify right side
831,639.42x = 538,324,290,820.41 - Step 5: Solve for x
x = 538,324,290,820.41/831,639.42 - Step 6: Final answer
x = 647,304.92
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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.