Finding the Fourth Proportional to 419,822.37, 629,823.01 and 135,529.08
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Solution
The fourth proportional to 419,822.37, 629,823.01 and 135,529.08 is: 203,322.49
Step by Step Solution
- Step 1: Write the proportion equation
419,822.37 : 629,823.01 = 135,529.08 : x - Step 2: Convert to fraction form
419,822.37/629,823.01 = 135,529.08/x - Step 3: Cross multiply
419,822.37x = 629,823.01 × 135,529.08 - Step 4: Simplify right side
419,822.37x = 85,359,331,702.98 - Step 5: Solve for x
x = 85,359,331,702.98/419,822.37 - Step 6: Final answer
x = 203,322.49
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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.