Finding the Fourth Proportional to 543,531.20, 750,142.26 and 328,672.80
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Solution
The fourth proportional to 543,531.20, 750,142.26 and 328,672.80 is: 453,610.32
Step by Step Solution
- Step 1: Write the proportion equation
543,531.20 : 750,142.26 = 328,672.80 : x - Step 2: Convert to fraction form
543,531.20/750,142.26 = 328,672.80/x - Step 3: Cross multiply
543,531.20x = 750,142.26 × 328,672.80 - Step 4: Simplify right side
543,531.20x = 246,551,356,992.53 - Step 5: Solve for x
x = 246,551,356,992.53/543,531.20 - Step 6: Final answer
x = 453,610.32
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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.