Finding the Fourth Proportional to 3,833,487.12, 5,749,621.08 and 1,274,489.40
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Solution
The fourth proportional to 3,833,487.12, 5,749,621.08 and 1,274,489.40 is: 1,911,531.43
Step by Step Solution
- Step 1: Write the proportion equation
3,833,487.12 : 5,749,621.08 = 1,274,489.40 : x - Step 2: Convert to fraction form
3,833,487.12/5,749,621.08 = 1,274,489.40/x - Step 3: Cross multiply
3,833,487.12x = 5,749,621.08 × 1,274,489.40 - Step 4: Simplify right side
3,833,487.12x = 7,327,831,120,476.55 - Step 5: Solve for x
x = 7,327,831,120,476.55/3,833,487.12 - Step 6: Final answer
x = 1,911,531.43
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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.