Finding the Fourth Proportional to 664,829.40, 997,252.20 and 215,546.70
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Solution
The fourth proportional to 664,829.40, 997,252.20 and 215,546.70 is: 323,322.68
Step by Step Solution
- Step 1: Write the proportion equation
664,829.40 : 997,252.20 = 215,546.70 : x - Step 2: Convert to fraction form
664,829.40/997,252.20 = 215,546.70/x - Step 3: Cross multiply
664,829.40x = 997,252.20 × 215,546.70 - Step 4: Simplify right side
664,829.40x = 214,954,420,777.74 - Step 5: Solve for x
x = 214,954,420,777.74/664,829.40 - Step 6: Final answer
x = 323,322.68
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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.