Finding the Fourth Proportional to 1,643,692.95, 2,268,289.63 and 918,540.49
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Solution
The fourth proportional to 1,643,692.95, 2,268,289.63 and 918,540.49 is: 1,267,582.17
Step by Step Solution
- Step 1: Write the proportion equation
1,643,692.95 : 2,268,289.63 = 918,540.49 : x - Step 2: Convert to fraction form
1,643,692.95/2,268,289.63 = 918,540.49/x - Step 3: Cross multiply
1,643,692.95x = 2,268,289.63 × 918,540.49 - Step 4: Simplify right side
1,643,692.95x = 2,083,515,868,202.12 - Step 5: Solve for x
x = 2,083,515,868,202.12/1,643,692.95 - Step 6: Final answer
x = 1,267,582.17
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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.