Finding the Fourth Proportional to 397,321.40, 595,982.10 and 353,775.80
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Solution
The fourth proportional to 397,321.40, 595,982.10 and 353,775.80 is: 530,663.70
Step by Step Solution
- Step 1: Write the proportion equation
397,321.40 : 595,982.10 = 353,775.80 : x - Step 2: Convert to fraction form
397,321.40/595,982.10 = 353,775.80/x - Step 3: Cross multiply
397,321.40x = 595,982.10 × 353,775.80 - Step 4: Simplify right side
397,321.40x = 210,844,044,213.18 - Step 5: Solve for x
x = 210,844,044,213.18/397,321.40 - Step 6: Final answer
x = 530,663.70
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1.5x scale
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.