Finding the Fourth Proportional to 664,827.40, 997,249.20 and 215,544.70
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Solution
The fourth proportional to 664,827.40, 997,249.20 and 215,544.70 is: 323,319.68
Step by Step Solution
- Step 1: Write the proportion equation
664,827.40 : 997,249.20 = 215,544.70 : x - Step 2: Convert to fraction form
664,827.40/997,249.20 = 215,544.70/x - Step 3: Cross multiply
664,827.40x = 997,249.20 × 215,544.70 - Step 4: Simplify right side
664,827.40x = 214,951,779,639.24 - Step 5: Solve for x
x = 214,951,779,639.24/664,827.40 - Step 6: Final answer
x = 323,319.68
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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.