Finding the Fourth Proportional to 603,721.70, 905,582.55 and 288,793.70
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Solution
The fourth proportional to 603,721.70, 905,582.55 and 288,793.70 is: 433,190.55
Step by Step Solution
- Step 1: Write the proportion equation
603,721.70 : 905,582.55 = 288,793.70 : x - Step 2: Convert to fraction form
603,721.70/905,582.55 = 288,793.70/x - Step 3: Cross multiply
603,721.70x = 905,582.55 × 288,793.70 - Step 4: Simplify right side
603,721.70x = 261,526,535,269.94 - Step 5: Solve for x
x = 261,526,535,269.94/603,721.70 - Step 6: Final answer
x = 433,190.55
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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.