Finding the Fourth Proportional to 664,706.63, 996,846.70 and 215,319.15
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Solution
The fourth proportional to 664,706.63, 996,846.70 and 215,319.15 is: 322,909.65
Step by Step Solution
- Step 1: Write the proportion equation
664,706.63 : 996,846.70 = 215,319.15 : x - Step 2: Convert to fraction form
664,706.63/996,846.70 = 215,319.15/x - Step 3: Cross multiply
664,706.63x = 996,846.70 × 215,319.15 - Step 4: Simplify right side
664,706.63x = 214,640,184,124.31 - Step 5: Solve for x
x = 214,640,184,124.31/664,706.63 - Step 6: Final answer
x = 322,909.65
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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.