Finding the Fourth Proportional to 522,059.70, 783,089.55 and 312,107.70
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Solution
The fourth proportional to 522,059.70, 783,089.55 and 312,107.70 is: 468,161.55
Step by Step Solution
- Step 1: Write the proportion equation
522,059.70 : 783,089.55 = 312,107.70 : x - Step 2: Convert to fraction form
522,059.70/783,089.55 = 312,107.70/x - Step 3: Cross multiply
522,059.70x = 783,089.55 × 312,107.70 - Step 4: Simplify right side
522,059.70x = 244,408,278,344.54 - Step 5: Solve for x
x = 244,408,278,344.54/522,059.70 - Step 6: Final answer
x = 468,161.55
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Similar ratio
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1.5x scale
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.