Finding the Fourth Proportional to 486,803.08, 728,428.38 and 287,219.08
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Solution
The fourth proportional to 486,803.08, 728,428.38 and 287,219.08 is: 429,780.62
Step by Step Solution
- Step 1: Write the proportion equation
486,803.08 : 728,428.38 = 287,219.08 : x - Step 2: Convert to fraction form
486,803.08/728,428.38 = 287,219.08/x - Step 3: Cross multiply
486,803.08x = 728,428.38 × 287,219.08 - Step 4: Simplify right side
486,803.08x = 209,218,529,149.49 - Step 5: Solve for x
x = 209,218,529,149.49/486,803.08 - Step 6: Final answer
x = 429,780.62
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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.