Finding the Fourth Proportional to 669,369.24, 923,636.62 and 393,739.60
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Solution
The fourth proportional to 669,369.24, 923,636.62 and 393,739.60 is: 543,305.98
Step by Step Solution
- Step 1: Write the proportion equation
669,369.24 : 923,636.62 = 393,739.60 : x - Step 2: Convert to fraction form
669,369.24/923,636.62 = 393,739.60/x - Step 3: Cross multiply
669,369.24x = 923,636.62 × 393,739.60 - Step 4: Simplify right side
669,369.24x = 363,672,313,304.15 - Step 5: Solve for x
x = 363,672,313,304.15/669,369.24 - Step 6: Final answer
x = 543,305.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.