Finding the Fourth Proportional to 905,900.13, 1,358,814.71 and 306,861.28
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Solution
The fourth proportional to 905,900.13, 1,358,814.71 and 306,861.28 is: 460,279.90
Step by Step Solution
- Step 1: Write the proportion equation
905,900.13 : 1,358,814.71 = 306,861.28 : x - Step 2: Convert to fraction form
905,900.13/1,358,814.71 = 306,861.28/x - Step 3: Cross multiply
905,900.13x = 1,358,814.71 × 306,861.28 - Step 4: Simplify right side
905,900.13x = 416,967,621,193.43 - Step 5: Solve for x
x = 416,967,621,193.43/905,900.13 - Step 6: Final answer
x = 460,279.90
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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.