Finding the Fourth Proportional to 547,554.70, 755,617.50 and 305,840.68
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Solution
The fourth proportional to 547,554.70, 755,617.50 and 305,840.68 is: 422,055.68
Step by Step Solution
- Step 1: Write the proportion equation
547,554.70 : 755,617.50 = 305,840.68 : x - Step 2: Convert to fraction form
547,554.70/755,617.50 = 305,840.68/x - Step 3: Cross multiply
547,554.70x = 755,617.50 × 305,840.68 - Step 4: Simplify right side
547,554.70x = 231,098,570,019.90 - Step 5: Solve for x
x = 231,098,570,019.90/547,554.70 - Step 6: Final answer
x = 422,055.68
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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.