Finding the Fourth Proportional to 479,708.26, 719,436.93 and 142,658.08
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Solution
The fourth proportional to 479,708.26, 719,436.93 and 142,658.08 is: 213,949.81
Step by Step Solution
- Step 1: Write the proportion equation
479,708.26 : 719,436.93 = 142,658.08 : x - Step 2: Convert to fraction form
479,708.26/719,436.93 = 142,658.08/x - Step 3: Cross multiply
479,708.26x = 719,436.93 × 142,658.08 - Step 4: Simplify right side
479,708.26x = 102,633,491,114.89 - Step 5: Solve for x
x = 102,633,491,114.89/479,708.26 - Step 6: Final answer
x = 213,949.81
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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.