Finding the Fourth Proportional to 347,611.18, 479,455.62 and 319,022.99
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Solution
The fourth proportional to 347,611.18, 479,455.62 and 319,022.99 is: 440,024.30
Step by Step Solution
- Step 1: Write the proportion equation
347,611.18 : 479,455.62 = 319,022.99 : x - Step 2: Convert to fraction form
347,611.18/479,455.62 = 319,022.99/x - Step 3: Cross multiply
347,611.18x = 479,455.62 × 319,022.99 - Step 4: Simplify right side
347,611.18x = 152,957,365,464.70 - Step 5: Solve for x
x = 152,957,365,464.70/347,611.18 - Step 6: Final answer
x = 440,024.30
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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.