Finding the Fourth Proportional to 814,067.18, 1,221,159.09 and 215,022.36
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Solution
The fourth proportional to 814,067.18, 1,221,159.09 and 215,022.36 is: 322,548.95
Step by Step Solution
- Step 1: Write the proportion equation
814,067.18 : 1,221,159.09 = 215,022.36 : x - Step 2: Convert to fraction form
814,067.18/1,221,159.09 = 215,022.36/x - Step 3: Cross multiply
814,067.18x = 1,221,159.09 × 215,022.36 - Step 4: Simplify right side
814,067.18x = 262,576,509,467.25 - Step 5: Solve for x
x = 262,576,509,467.25/814,067.18 - Step 6: Final answer
x = 322,548.95
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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.