Finding the Fourth Proportional to 3,919,358.55, 5,876,749.67 and 1,520,399.99
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Solution
The fourth proportional to 3,919,358.55, 5,876,749.67 and 1,520,399.99 is: 2,279,712.35
Step by Step Solution
- Step 1: Write the proportion equation
3,919,358.55 : 5,876,749.67 = 1,520,399.99 : x - Step 2: Convert to fraction form
3,919,358.55/5,876,749.67 = 1,520,399.99/x - Step 3: Cross multiply
3,919,358.55x = 5,876,749.67 × 1,520,399.99 - Step 4: Simplify right side
3,919,358.55x = 8,935,010,102,514.76 - Step 5: Solve for x
x = 8,935,010,102,514.76/3,919,358.55 - Step 6: Final answer
x = 2,279,712.35
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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.