Finding the Fourth Proportional to 409,849.60, 615,163.20 and 252,385.60
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Solution
The fourth proportional to 409,849.60, 615,163.20 and 252,385.60 is: 378,817.82
Step by Step Solution
- Step 1: Write the proportion equation
409,849.60 : 615,163.20 = 252,385.60 : x - Step 2: Convert to fraction form
409,849.60/615,163.20 = 252,385.60/x - Step 3: Cross multiply
409,849.60x = 615,163.20 × 252,385.60 - Step 4: Simplify right side
409,849.60x = 155,258,333,329.92 - Step 5: Solve for x
x = 155,258,333,329.92/409,849.60 - Step 6: Final answer
x = 378,817.82
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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.