Finding the Fourth Proportional to 386,400.11, 532,616.03 and 304,594.95
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Solution
The fourth proportional to 386,400.11, 532,616.03 and 304,594.95 is: 419,855.35
Step by Step Solution
- Step 1: Write the proportion equation
386,400.11 : 532,616.03 = 304,594.95 : x - Step 2: Convert to fraction form
386,400.11/532,616.03 = 304,594.95/x - Step 3: Cross multiply
386,400.11x = 532,616.03 × 304,594.95 - Step 4: Simplify right side
386,400.11x = 162,232,153,027.05 - Step 5: Solve for x
x = 162,232,153,027.05/386,400.11 - Step 6: Final answer
x = 419,855.35
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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.