Finding the Fourth Proportional to 424,458.21, 635,939.93 and 399,173.23
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Solution
The fourth proportional to 424,458.21, 635,939.93 and 399,173.23 is: 598,056.98
Step by Step Solution
- Step 1: Write the proportion equation
424,458.21 : 635,939.93 = 399,173.23 : x - Step 2: Convert to fraction form
424,458.21/635,939.93 = 399,173.23/x - Step 3: Cross multiply
424,458.21x = 635,939.93 × 399,173.23 - Step 4: Simplify right side
424,458.21x = 253,850,193,948.21 - Step 5: Solve for x
x = 253,850,193,948.21/424,458.21 - Step 6: Final answer
x = 598,056.98
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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.