Finding the Fourth Proportional to 667,383.90, 921,070.68 and 377,007.70
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Solution
The fourth proportional to 667,383.90, 921,070.68 and 377,007.70 is: 520,316.33
Step by Step Solution
- Step 1: Write the proportion equation
667,383.90 : 921,070.68 = 377,007.70 : x - Step 2: Convert to fraction form
667,383.90/921,070.68 = 377,007.70/x - Step 3: Cross multiply
667,383.90x = 921,070.68 × 377,007.70 - Step 4: Simplify right side
667,383.90x = 347,250,738,604.24 - Step 5: Solve for x
x = 347,250,738,604.24/667,383.90 - Step 6: Final answer
x = 520,316.33
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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.