Finding the Fourth Proportional to 2,862,178.68, 3,949,852.68 and 1,638,479.28
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Solution
The fourth proportional to 2,862,178.68, 3,949,852.68 and 1,638,479.28 is: 2,261,127.80
Step by Step Solution
- Step 1: Write the proportion equation
2,862,178.68 : 3,949,852.68 = 1,638,479.28 : x - Step 2: Convert to fraction form
2,862,178.68/3,949,852.68 = 1,638,479.28/x - Step 3: Cross multiply
2,862,178.68x = 3,949,852.68 × 1,638,479.28 - Step 4: Simplify right side
2,862,178.68x = 6,471,751,775,232.47 - Step 5: Solve for x
x = 6,471,751,775,232.47/2,862,178.68 - Step 6: Final answer
x = 2,261,127.80
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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.