Finding the Fourth Proportional to 669,007.80, 923,161.26 and 378,651.96
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Solution
The fourth proportional to 669,007.80, 923,161.26 and 378,651.96 is: 522,500.37
Step by Step Solution
- Step 1: Write the proportion equation
669,007.80 : 923,161.26 = 378,651.96 : x - Step 2: Convert to fraction form
669,007.80/923,161.26 = 378,651.96/x - Step 3: Cross multiply
669,007.80x = 923,161.26 × 378,651.96 - Step 4: Simplify right side
669,007.80x = 349,556,820,495.07 - Step 5: Solve for x
x = 349,556,820,495.07/669,007.80 - Step 6: Final answer
x = 522,500.37
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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.