Finding the Fourth Proportional to 456,221.56, 629,609.70 and 274,991.08
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Solution
The fourth proportional to 456,221.56, 629,609.70 and 274,991.08 is: 379,502.12
Step by Step Solution
- Step 1: Write the proportion equation
456,221.56 : 629,609.70 = 274,991.08 : x - Step 2: Convert to fraction form
456,221.56/629,609.70 = 274,991.08/x - Step 3: Cross multiply
456,221.56x = 629,609.70 × 274,991.08 - Step 4: Simplify right side
456,221.56x = 173,137,051,381.48 - Step 5: Solve for x
x = 173,137,051,381.48/456,221.56 - Step 6: Final answer
x = 379,502.12
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1.5x scale
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.