Finding the Fourth Proportional to 2,912,290.80, 4,368,436.20 and 2,604,361.20
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Solution
The fourth proportional to 2,912,290.80, 4,368,436.20 and 2,604,361.20 is: 3,906,541.80
Step by Step Solution
- Step 1: Write the proportion equation
2,912,290.80 : 4,368,436.20 = 2,604,361.20 : x - Step 2: Convert to fraction form
2,912,290.80/4,368,436.20 = 2,604,361.20/x - Step 3: Cross multiply
2,912,290.80x = 4,368,436.20 × 2,604,361.20 - Step 4: Simplify right side
2,912,290.80x = 11,376,985,743,955.44 - Step 5: Solve for x
x = 11,376,985,743,955.44/2,912,290.80 - Step 6: Final answer
x = 3,906,541.80
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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.