Finding the Fourth Proportional to 419,679.08, 629,457.12 and 206,389.68
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Solution
The fourth proportional to 419,679.08, 629,457.12 and 206,389.68 is: 309,554.28
Step by Step Solution
- Step 1: Write the proportion equation
419,679.08 : 629,457.12 = 206,389.68 : x - Step 2: Convert to fraction form
419,679.08/629,457.12 = 206,389.68/x - Step 3: Cross multiply
419,679.08x = 629,457.12 × 206,389.68 - Step 4: Simplify right side
419,679.08x = 129,913,453,570.52 - Step 5: Solve for x
x = 129,913,453,570.52/419,679.08 - Step 6: Final answer
x = 309,554.28
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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.