Finding the Fourth Proportional to 686,629.98, 1,030,168.53 and 331,684.74
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Solution
The fourth proportional to 686,629.98, 1,030,168.53 and 331,684.74 is: 497,635.10
Step by Step Solution
- Step 1: Write the proportion equation
686,629.98 : 1,030,168.53 = 331,684.74 : x - Step 2: Convert to fraction form
686,629.98/1,030,168.53 = 331,684.74/x - Step 3: Cross multiply
686,629.98x = 1,030,168.53 × 331,684.74 - Step 4: Simplify right side
686,629.98x = 341,691,181,029.23 - Step 5: Solve for x
x = 341,691,181,029.23/686,629.98 - Step 6: Final answer
x = 497,635.10
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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.