Finding the Fourth Proportional to 419,646.09, 629,655.19 and 219,918.99
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Solution
The fourth proportional to 419,646.09, 629,655.19 and 219,918.99 is: 329,975.99
Step by Step Solution
- Step 1: Write the proportion equation
419,646.09 : 629,655.19 = 219,918.99 : x - Step 2: Convert to fraction form
419,646.09/629,655.19 = 219,918.99/x - Step 3: Cross multiply
419,646.09x = 629,655.19 × 219,918.99 - Step 4: Simplify right side
419,646.09x = 138,473,133,433.06 - Step 5: Solve for x
x = 138,473,133,433.06/419,646.09 - Step 6: Final answer
x = 329,975.99
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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.