Finding the Fourth Proportional to 485,591.10, 728,596.80 and 260,689.14
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Solution
The fourth proportional to 485,591.10, 728,596.80 and 260,689.14 is: 391,146.53
Step by Step Solution
- Step 1: Write the proportion equation
485,591.10 : 728,596.80 = 260,689.14 : x - Step 2: Convert to fraction form
485,591.10/728,596.80 = 260,689.14/x - Step 3: Cross multiply
485,591.10x = 728,596.80 × 260,689.14 - Step 4: Simplify right side
485,591.10x = 189,937,273,198.75 - Step 5: Solve for x
x = 189,937,273,198.75/485,591.10 - Step 6: Final answer
x = 391,146.53
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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.