Finding the Fourth Proportional to 1,643,701.88, 2,268,311.67 and 918,549.60
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Solution
The fourth proportional to 1,643,701.88, 2,268,311.67 and 918,549.60 is: 1,267,600.17
Step by Step Solution
- Step 1: Write the proportion equation
1,643,701.88 : 2,268,311.67 = 918,549.60 : x - Step 2: Convert to fraction form
1,643,701.88/2,268,311.67 = 918,549.60/x - Step 3: Cross multiply
1,643,701.88x = 2,268,311.67 × 918,549.60 - Step 4: Simplify right side
1,643,701.88x = 2,083,556,777,153.83 - Step 5: Solve for x
x = 2,083,556,777,153.83/1,643,701.88 - Step 6: Final answer
x = 1,267,600.17
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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.