Finding the Fourth Proportional to 782,519.62, 1,173,779.43 and 221,558.98
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Solution
The fourth proportional to 782,519.62, 1,173,779.43 and 221,558.98 is: 332,338.47
Step by Step Solution
- Step 1: Write the proportion equation
782,519.62 : 1,173,779.43 = 221,558.98 : x - Step 2: Convert to fraction form
782,519.62/1,173,779.43 = 221,558.98/x - Step 3: Cross multiply
782,519.62x = 1,173,779.43 × 221,558.98 - Step 4: Simplify right side
782,519.62x = 260,061,373,255.78 - Step 5: Solve for x
x = 260,061,373,255.78/782,519.62 - Step 6: Final answer
x = 332,338.47
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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.