Finding the Fourth Proportional to 3,539,428.28, 4,884,785.78 and 2,163,577.32
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Solution
The fourth proportional to 3,539,428.28, 4,884,785.78 and 2,163,577.32 is: 2,985,965.78
Step by Step Solution
- Step 1: Write the proportion equation
3,539,428.28 : 4,884,785.78 = 2,163,577.32 : x - Step 2: Convert to fraction form
3,539,428.28/4,884,785.78 = 2,163,577.32/x - Step 3: Cross multiply
3,539,428.28x = 4,884,785.78 × 2,163,577.32 - Step 4: Simplify right side
3,539,428.28x = 10,568,611,726,666.51 - Step 5: Solve for x
x = 10,568,611,726,666.51/3,539,428.28 - Step 6: Final answer
x = 2,985,965.78
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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.