Finding the Fourth Proportional to 1,643,761.19, 2,268,398.84 and 918,621.02
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Solution
The fourth proportional to 1,643,761.19, 2,268,398.84 and 918,621.02 is: 1,267,701.70
Step by Step Solution
- Step 1: Write the proportion equation
1,643,761.19 : 2,268,398.84 = 918,621.02 : x - Step 2: Convert to fraction form
1,643,761.19/2,268,398.84 = 918,621.02/x - Step 3: Cross multiply
1,643,761.19x = 2,268,398.84 × 918,621.02 - Step 4: Simplify right side
1,643,761.19x = 2,083,798,857,245.51 - Step 5: Solve for x
x = 2,083,798,857,245.51/1,643,761.19 - Step 6: Final answer
x = 1,267,701.70
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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.