Finding the Fourth Proportional to 664,438.86, 996,816.84 and 215,160.21
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Solution
The fourth proportional to 664,438.86, 996,816.84 and 215,160.21 is: 322,791.66
Step by Step Solution
- Step 1: Write the proportion equation
664,438.86 : 996,816.84 = 215,160.21 : x - Step 2: Convert to fraction form
664,438.86/996,816.84 = 215,160.21/x - Step 3: Cross multiply
664,438.86x = 996,816.84 × 215,160.21 - Step 4: Simplify right side
664,438.86x = 214,475,320,625.94 - Step 5: Solve for x
x = 214,475,320,625.94/664,438.86 - Step 6: Final answer
x = 322,791.66
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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.