Finding the Fourth Proportional to 547,775.68, 821,119.20 and 381,213.76
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Solution
The fourth proportional to 547,775.68, 821,119.20 and 381,213.76 is: 571,441.83
Step by Step Solution
- Step 1: Write the proportion equation
547,775.68 : 821,119.20 = 381,213.76 : x - Step 2: Convert to fraction form
547,775.68/821,119.20 = 381,213.76/x - Step 3: Cross multiply
547,775.68x = 821,119.20 × 381,213.76 - Step 4: Simplify right side
547,775.68x = 313,021,937,640.19 - Step 5: Solve for x
x = 313,021,937,640.19/547,775.68 - Step 6: Final answer
x = 571,441.83
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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.