Finding the Fourth Proportional to 521,751.70, 782,627.55 and 189,207.70
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Solution
The fourth proportional to 521,751.70, 782,627.55 and 189,207.70 is: 283,811.55
Step by Step Solution
- Step 1: Write the proportion equation
521,751.70 : 782,627.55 = 189,207.70 : x - Step 2: Convert to fraction form
521,751.70/782,627.55 = 189,207.70/x - Step 3: Cross multiply
521,751.70x = 782,627.55 × 189,207.70 - Step 4: Simplify right side
521,751.70x = 148,079,158,692.14 - Step 5: Solve for x
x = 148,079,158,692.14/521,751.70 - Step 6: Final answer
x = 283,811.55
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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.