Finding the Fourth Proportional to 543,687.84, 815,531.76 and 169,742.88
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Solution
The fourth proportional to 543,687.84, 815,531.76 and 169,742.88 is: 254,614.32
Step by Step Solution
- Step 1: Write the proportion equation
543,687.84 : 815,531.76 = 169,742.88 : x - Step 2: Convert to fraction form
543,687.84/815,531.76 = 169,742.88/x - Step 3: Cross multiply
543,687.84x = 815,531.76 × 169,742.88 - Step 4: Simplify right side
543,687.84x = 138,430,709,673.87 - Step 5: Solve for x
x = 138,430,709,673.87/543,687.84 - Step 6: Final answer
x = 254,614.32
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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.