Finding the Fourth Proportional to 397,647.40, 596,471.10 and 354,101.80
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Solution
The fourth proportional to 397,647.40, 596,471.10 and 354,101.80 is: 531,152.70
Step by Step Solution
- Step 1: Write the proportion equation
397,647.40 : 596,471.10 = 354,101.80 : x - Step 2: Convert to fraction form
397,647.40/596,471.10 = 354,101.80/x - Step 3: Cross multiply
397,647.40x = 596,471.10 × 354,101.80 - Step 4: Simplify right side
397,647.40x = 211,211,490,157.98 - Step 5: Solve for x
x = 211,211,490,157.98/397,647.40 - Step 6: Final answer
x = 531,152.70
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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.