Finding the Fourth Proportional to 2,128,743.32, 3,193,114.77 and 780,396.26
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Solution
The fourth proportional to 2,128,743.32, 3,193,114.77 and 780,396.26 is: 1,170,594.31
Step by Step Solution
- Step 1: Write the proportion equation
2,128,743.32 : 3,193,114.77 = 780,396.26 : x - Step 2: Convert to fraction form
2,128,743.32/3,193,114.77 = 780,396.26/x - Step 3: Cross multiply
2,128,743.32x = 3,193,114.77 × 780,396.26 - Step 4: Simplify right side
2,128,743.32x = 2,491,894,808,293.19 - Step 5: Solve for x
x = 2,491,894,808,293.19/2,128,743.32 - Step 6: Final answer
x = 1,170,594.31
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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.