Finding the Fourth Proportional to 3,766,643.80, 5,649,965.70 and 1,241,690.20
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Solution
The fourth proportional to 3,766,643.80, 5,649,965.70 and 1,241,690.20 is: 1,862,535.30
Step by Step Solution
- Step 1: Write the proportion equation
3,766,643.80 : 5,649,965.70 = 1,241,690.20 : x - Step 2: Convert to fraction form
3,766,643.80/5,649,965.70 = 1,241,690.20/x - Step 3: Cross multiply
3,766,643.80x = 5,649,965.70 × 1,241,690.20 - Step 4: Simplify right side
3,766,643.80x = 7,015,507,040,026.14 - Step 5: Solve for x
x = 7,015,507,040,026.14/3,766,643.80 - Step 6: Final answer
x = 1,862,535.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.