Finding the Fourth Proportional to 513,007.80, 769,511.70 and 459,863.70
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Solution
The fourth proportional to 513,007.80, 769,511.70 and 459,863.70 is: 689,795.55
Step by Step Solution
- Step 1: Write the proportion equation
513,007.80 : 769,511.70 = 459,863.70 : x - Step 2: Convert to fraction form
513,007.80/769,511.70 = 459,863.70/x - Step 3: Cross multiply
513,007.80x = 769,511.70 × 459,863.70 - Step 4: Simplify right side
513,007.80x = 353,870,497,555.29 - Step 5: Solve for x
x = 353,870,497,555.29/513,007.80 - Step 6: Final answer
x = 689,795.55
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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.