Finding the Fourth Proportional to 3,193,811.70, 4,790,717.55 and 2,878,883.70
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Solution
The fourth proportional to 3,193,811.70, 4,790,717.55 and 2,878,883.70 is: 4,318,325.55
Step by Step Solution
- Step 1: Write the proportion equation
3,193,811.70 : 4,790,717.55 = 2,878,883.70 : x - Step 2: Convert to fraction form
3,193,811.70/4,790,717.55 = 2,878,883.70/x - Step 3: Cross multiply
3,193,811.70x = 4,790,717.55 × 2,878,883.70 - Step 4: Simplify right side
3,193,811.70x = 13,791,918,665,998.94 - Step 5: Solve for x
x = 13,791,918,665,998.94/3,193,811.70 - Step 6: Final answer
x = 4,318,325.55
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1.5x scale
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.