Finding the Fourth Proportional to 398,416.20, 596,640.15 and 296,970.99
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Solution
The fourth proportional to 398,416.20, 596,640.15 and 296,970.99 is: 444,722.92
Step by Step Solution
- Step 1: Write the proportion equation
398,416.20 : 596,640.15 = 296,970.99 : x - Step 2: Convert to fraction form
398,416.20/596,640.15 = 296,970.99/x - Step 3: Cross multiply
398,416.20x = 596,640.15 × 296,970.99 - Step 4: Simplify right side
398,416.20x = 177,184,816,019.25 - Step 5: Solve for x
x = 177,184,816,019.25/398,416.20 - Step 6: Final answer
x = 444,722.92
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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.