Finding the Fourth Proportional to 490,679.70, 735,501.15 and 279,863.70
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Solution
The fourth proportional to 490,679.70, 735,501.15 and 279,863.70 is: 419,499.88
Step by Step Solution
- Step 1: Write the proportion equation
490,679.70 : 735,501.15 = 279,863.70 : x - Step 2: Convert to fraction form
490,679.70/735,501.15 = 279,863.70/x - Step 3: Cross multiply
490,679.70x = 735,501.15 × 279,863.70 - Step 4: Simplify right side
490,679.70x = 205,840,073,193.26 - Step 5: Solve for x
x = 205,840,073,193.26/490,679.70 - Step 6: Final answer
x = 419,499.88
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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.