Finding the Fourth Proportional to 529,854.99, 731,205.08 and 288,142.79
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Solution
The fourth proportional to 529,854.99, 731,205.08 and 288,142.79 is: 397,639.87
Step by Step Solution
- Step 1: Write the proportion equation
529,854.99 : 731,205.08 = 288,142.79 : x - Step 2: Convert to fraction form
529,854.99/731,205.08 = 288,142.79/x - Step 3: Cross multiply
529,854.99x = 731,205.08 × 288,142.79 - Step 4: Simplify right side
529,854.99x = 210,691,466,716.63 - Step 5: Solve for x
x = 210,691,466,716.63/529,854.99 - Step 6: Final answer
x = 397,639.87
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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.