Finding the Fourth Proportional to 2,712,915.18, 3,743,808.17 and 1,489,241.53
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Solution
The fourth proportional to 2,712,915.18, 3,743,808.17 and 1,489,241.53 is: 2,055,145.20
Step by Step Solution
- Step 1: Write the proportion equation
2,712,915.18 : 3,743,808.17 = 1,489,241.53 : x - Step 2: Convert to fraction form
2,712,915.18/3,743,808.17 = 1,489,241.53/x - Step 3: Cross multiply
2,712,915.18x = 3,743,808.17 × 1,489,241.53 - Step 4: Simplify right side
2,712,915.18x = 5,575,434,604,350.85 - Step 5: Solve for x
x = 5,575,434,604,350.85/2,712,915.18 - Step 6: Final answer
x = 2,055,145.20
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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.