Finding the Fourth Proportional to 522,135.30, 720,533.68 and 289,560.88
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Solution
The fourth proportional to 522,135.30, 720,533.68 and 289,560.88 is: 399,586.79
Step by Step Solution
- Step 1: Write the proportion equation
522,135.30 : 720,533.68 = 289,560.88 : x - Step 2: Convert to fraction form
522,135.30/720,533.68 = 289,560.88/x - Step 3: Cross multiply
522,135.30x = 720,533.68 × 289,560.88 - Step 4: Simplify right side
522,135.30x = 208,638,366,450.44 - Step 5: Solve for x
x = 208,638,366,450.44/522,135.30 - Step 6: Final answer
x = 399,586.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.