Finding the Fourth Proportional to 2,586,509.76, 3,879,771.84 and 903,613.20
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Solution
The fourth proportional to 2,586,509.76, 3,879,771.84 and 903,613.20 is: 1,355,422.32
Step by Step Solution
- Step 1: Write the proportion equation
2,586,509.76 : 3,879,771.84 = 903,613.20 : x - Step 2: Convert to fraction form
2,586,509.76/3,879,771.84 = 903,613.20/x - Step 3: Cross multiply
2,586,509.76x = 3,879,771.84 × 903,613.20 - Step 4: Simplify right side
2,586,509.76x = 3,505,813,047,612.29 - Step 5: Solve for x
x = 3,505,813,047,612.29/2,586,509.76 - Step 6: Final answer
x = 1,355,422.32
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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.