Finding the Fourth Proportional to 393,705.18, 590,651.84 and 127,465.99
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Solution
The fourth proportional to 393,705.18, 590,651.84 and 127,465.99 is: 191,229.44
Step by Step Solution
- Step 1: Write the proportion equation
393,705.18 : 590,651.84 = 127,465.99 : x - Step 2: Convert to fraction form
393,705.18/590,651.84 = 127,465.99/x - Step 3: Cross multiply
393,705.18x = 590,651.84 × 127,465.99 - Step 4: Simplify right side
393,705.18x = 75,288,020,372.96 - Step 5: Solve for x
x = 75,288,020,372.96/393,705.18 - Step 6: Final answer
x = 191,229.44
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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.