Finding the Fourth Proportional to 656,311.20, 984,855.60 and 478,370.40
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Solution
The fourth proportional to 656,311.20, 984,855.60 and 478,370.40 is: 717,838.99
Step by Step Solution
- Step 1: Write the proportion equation
656,311.20 : 984,855.60 = 478,370.40 : x - Step 2: Convert to fraction form
656,311.20/984,855.60 = 478,370.40/x - Step 3: Cross multiply
656,311.20x = 984,855.60 × 478,370.40 - Step 4: Simplify right side
656,311.20x = 471,125,767,314.24 - Step 5: Solve for x
x = 471,125,767,314.24/656,311.20 - Step 6: Final answer
x = 717,838.99
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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.