Finding the Fourth Proportional to 4,128,324.80, 6,192,487.20 and 3,278,019.20
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Solution
The fourth proportional to 4,128,324.80, 6,192,487.20 and 3,278,019.20 is: 4,917,028.80
Step by Step Solution
- Step 1: Write the proportion equation
4,128,324.80 : 6,192,487.20 = 3,278,019.20 : x - Step 2: Convert to fraction form
4,128,324.80/6,192,487.20 = 3,278,019.20/x - Step 3: Cross multiply
4,128,324.80x = 6,192,487.20 × 3,278,019.20 - Step 4: Simplify right side
4,128,324.80x = 20,299,091,937,354.24 - Step 5: Solve for x
x = 20,299,091,937,354.24/4,128,324.80 - Step 6: Final answer
x = 4,917,028.80
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1.5x scale
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.