Finding the Fourth Proportional to 664,713.48, 996,861.08 and 215,330.09
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Solution
The fourth proportional to 664,713.48, 996,861.08 and 215,330.09 is: 322,927.38
Step by Step Solution
- Step 1: Write the proportion equation
664,713.48 : 996,861.08 = 215,330.09 : x - Step 2: Convert to fraction form
664,713.48/996,861.08 = 215,330.09/x - Step 3: Cross multiply
664,713.48x = 996,861.08 × 215,330.09 - Step 4: Simplify right side
664,713.48x = 214,654,180,012.94 - Step 5: Solve for x
x = 214,654,180,012.94/664,713.48 - Step 6: Final answer
x = 322,927.38
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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.