Finding the Fourth Proportional to 720,177.44, 993,855.29 and 397,894.95
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Solution
The fourth proportional to 720,177.44, 993,855.29 and 397,894.95 is: 549,100.79
Step by Step Solution
- Step 1: Write the proportion equation
720,177.44 : 993,855.29 = 397,894.95 : x - Step 2: Convert to fraction form
720,177.44/993,855.29 = 397,894.95/x - Step 3: Cross multiply
720,177.44x = 993,855.29 × 397,894.95 - Step 4: Simplify right side
720,177.44x = 395,449,998,932.31 - Step 5: Solve for x
x = 395,449,998,932.31/720,177.44 - Step 6: Final answer
x = 549,100.79
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1.5x scale
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.