Finding the Fourth Proportional to 641,814.36, 962,830.84 and 322,118.68
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Solution
The fourth proportional to 641,814.36, 962,830.84 and 322,118.68 is: 483,232.88
Step by Step Solution
- Step 1: Write the proportion equation
641,814.36 : 962,830.84 = 322,118.68 : x - Step 2: Convert to fraction form
641,814.36/962,830.84 = 322,118.68/x - Step 3: Cross multiply
641,814.36x = 962,830.84 × 322,118.68 - Step 4: Simplify right side
641,814.36x = 310,145,799,244.09 - Step 5: Solve for x
x = 310,145,799,244.09/641,814.36 - Step 6: Final answer
x = 483,232.88
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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.