Finding the Fourth Proportional to 814,662.12, 1,221,701.58 and 282,040.14
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Solution
The fourth proportional to 814,662.12, 1,221,701.58 and 282,040.14 is: 422,959.26
Step by Step Solution
- Step 1: Write the proportion equation
814,662.12 : 1,221,701.58 = 282,040.14 : x - Step 2: Convert to fraction form
814,662.12/1,221,701.58 = 282,040.14/x - Step 3: Cross multiply
814,662.12x = 1,221,701.58 × 282,040.14 - Step 4: Simplify right side
814,662.12x = 344,568,884,661.42 - Step 5: Solve for x
x = 344,568,884,661.42/814,662.12 - Step 6: Final answer
x = 422,959.26
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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.