Finding the Fourth Proportional to 419,837.49, 629,756.08 and 135,569.85
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Solution
The fourth proportional to 419,837.49, 629,756.08 and 135,569.85 is: 203,354.72
Step by Step Solution
- Step 1: Write the proportion equation
419,837.49 : 629,756.08 = 135,569.85 : x - Step 2: Convert to fraction form
419,837.49/629,756.08 = 135,569.85/x - Step 3: Cross multiply
419,837.49x = 629,756.08 × 135,569.85 - Step 4: Simplify right side
419,837.49x = 85,375,937,302.19 - Step 5: Solve for x
x = 85,375,937,302.19/419,837.49 - Step 6: Final answer
x = 203,354.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.