Finding the Fourth Proportional to 512,998.20, 769,497.30 and 471,007.80
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Solution
The fourth proportional to 512,998.20, 769,497.30 and 471,007.80 is: 706,511.70
Step by Step Solution
- Step 1: Write the proportion equation
512,998.20 : 769,497.30 = 471,007.80 : x - Step 2: Convert to fraction form
512,998.20/769,497.30 = 471,007.80/x - Step 3: Cross multiply
512,998.20x = 769,497.30 × 471,007.80 - Step 4: Simplify right side
512,998.20x = 362,439,230,378.94 - Step 5: Solve for x
x = 362,439,230,378.94/512,998.20 - Step 6: Final answer
x = 706,511.70
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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.