Finding the Fourth Proportional to 906,403.62, 1,358,380.68 and 345,131.94
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Solution
The fourth proportional to 906,403.62, 1,358,380.68 and 345,131.94 is: 517,231.56
Step by Step Solution
- Step 1: Write the proportion equation
906,403.62 : 1,358,380.68 = 345,131.94 : x - Step 2: Convert to fraction form
906,403.62/1,358,380.68 = 345,131.94/x - Step 3: Cross multiply
906,403.62x = 1,358,380.68 × 345,131.94 - Step 4: Simplify right side
906,403.62x = 468,820,558,052.67 - Step 5: Solve for x
x = 468,820,558,052.67/906,403.62 - Step 6: Final answer
x = 517,231.56
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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.