Finding the Fourth Proportional to 3,368,231.28, 4,648,203.68 and 1,917,932.56
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Solution
The fourth proportional to 3,368,231.28, 4,648,203.68 and 1,917,932.56 is: 2,646,772.28
Step by Step Solution
- Step 1: Write the proportion equation
3,368,231.28 : 4,648,203.68 = 1,917,932.56 : x - Step 2: Convert to fraction form
3,368,231.28/4,648,203.68 = 1,917,932.56/x - Step 3: Cross multiply
3,368,231.28x = 4,648,203.68 × 1,917,932.56 - Step 4: Simplify right side
3,368,231.28x = 8,914,941,183,383.82 - Step 5: Solve for x
x = 8,914,941,183,383.82/3,368,231.28 - Step 6: Final answer
x = 2,646,772.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.