Finding the Fourth Proportional to 669,534.12, 923,732.30 and 379,105.99
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Solution
The fourth proportional to 669,534.12, 923,732.30 and 379,105.99 is: 523,038.99
Step by Step Solution
- Step 1: Write the proportion equation
669,534.12 : 923,732.30 = 379,105.99 : x - Step 2: Convert to fraction form
669,534.12/923,732.30 = 379,105.99/x - Step 3: Cross multiply
669,534.12x = 923,732.30 × 379,105.99 - Step 4: Simplify right side
669,534.12x = 350,192,446,724.91 - Step 5: Solve for x
x = 350,192,446,724.91/669,534.12 - Step 6: Final answer
x = 523,038.99
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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.