Finding the Fourth Proportional to 512,669.70, 769,004.55 and 512,669.70
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Solution
The fourth proportional to 512,669.70, 769,004.55 and 512,669.70 is: 769,004.55
Step by Step Solution
- Step 1: Write the proportion equation
512,669.70 : 769,004.55 = 512,669.70 : x - Step 2: Convert to fraction form
512,669.70/769,004.55 = 512,669.70/x - Step 3: Cross multiply
512,669.70x = 769,004.55 × 512,669.70 - Step 4: Simplify right side
512,669.70x = 394,245,331,947.14 - Step 5: Solve for x
x = 394,245,331,947.14/512,669.70 - Step 6: Final answer
x = 769,004.55
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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.