Finding the Fourth Proportional to 1,643,543.92, 2,268,047.05 and 918,397.63
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Solution
The fourth proportional to 1,643,543.92, 2,268,047.05 and 918,397.63 is: 1,267,364.39
Step by Step Solution
- Step 1: Write the proportion equation
1,643,543.92 : 2,268,047.05 = 918,397.63 : x - Step 2: Convert to fraction form
1,643,543.92/2,268,047.05 = 918,397.63/x - Step 3: Cross multiply
1,643,543.92x = 2,268,047.05 × 918,397.63 - Step 4: Simplify right side
1,643,543.92x = 2,082,969,035,448.49 - Step 5: Solve for x
x = 2,082,969,035,448.49/1,643,543.92 - Step 6: Final answer
x = 1,267,364.39
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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.