Finding the Fourth Proportional to 547,286.34, 755,247.99 and 305,573.02
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Solution
The fourth proportional to 547,286.34, 755,247.99 and 305,573.02 is: 421,686.77
Step by Step Solution
- Step 1: Write the proportion equation
547,286.34 : 755,247.99 = 305,573.02 : x - Step 2: Convert to fraction form
547,286.34/755,247.99 = 305,573.02/x - Step 3: Cross multiply
547,286.34x = 755,247.99 × 305,573.02 - Step 4: Simplify right side
547,286.34x = 230,783,409,153.23 - Step 5: Solve for x
x = 230,783,409,153.23/547,286.34 - Step 6: Final answer
x = 421,686.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.