Finding the Fourth Proportional to 386,395.11, 532,609.14 and 304,589.95
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Solution
The fourth proportional to 386,395.11, 532,609.14 and 304,589.95 is: 419,848.46
Step by Step Solution
- Step 1: Write the proportion equation
386,395.11 : 532,609.14 = 304,589.95 : x - Step 2: Convert to fraction form
386,395.11/532,609.14 = 304,589.95/x - Step 3: Cross multiply
386,395.11x = 532,609.14 × 304,589.95 - Step 4: Simplify right side
386,395.11x = 162,227,392,415.44 - Step 5: Solve for x
x = 162,227,392,415.44/386,395.11 - Step 6: Final answer
x = 419,848.46
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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.