Finding the Fourth Proportional to 656,317.20, 984,864.60 and 478,376.40
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Solution
The fourth proportional to 656,317.20, 984,864.60 and 478,376.40 is: 717,847.99
Step by Step Solution
- Step 1: Write the proportion equation
656,317.20 : 984,864.60 = 478,376.40 : x - Step 2: Convert to fraction form
656,317.20/984,864.60 = 478,376.40/x - Step 3: Cross multiply
656,317.20x = 984,864.60 × 478,376.40 - Step 4: Simplify right side
656,317.20x = 471,135,981,835.44 - Step 5: Solve for x
x = 471,135,981,835.44/656,317.20 - Step 6: Final answer
x = 717,847.99
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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.