Finding the Fourth Proportional to 548,611.70, 822,917.55 and 455,299.70
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Solution
The fourth proportional to 548,611.70, 822,917.55 and 455,299.70 is: 682,949.55
Step by Step Solution
- Step 1: Write the proportion equation
548,611.70 : 822,917.55 = 455,299.70 : x - Step 2: Convert to fraction form
548,611.70/822,917.55 = 455,299.70/x - Step 3: Cross multiply
548,611.70x = 822,917.55 × 455,299.70 - Step 4: Simplify right side
548,611.70x = 374,674,113,639.74 - Step 5: Solve for x
x = 374,674,113,639.74/548,611.70 - Step 6: Final answer
x = 682,949.55
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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.