Finding the Fourth Proportional to 1,427,618.09, 2,141,574.80 and 481,062.62
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Solution
The fourth proportional to 1,427,618.09, 2,141,574.80 and 481,062.62 is: 721,643.69
Step by Step Solution
- Step 1: Write the proportion equation
1,427,618.09 : 2,141,574.80 = 481,062.62 : x - Step 2: Convert to fraction form
1,427,618.09/2,141,574.80 = 481,062.62/x - Step 3: Cross multiply
1,427,618.09x = 2,141,574.80 × 481,062.62 - Step 4: Simplify right side
1,427,618.09x = 1,030,231,587,162.60 - Step 5: Solve for x
x = 1,030,231,587,162.60/1,427,618.09 - Step 6: Final answer
x = 721,643.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.