Finding the Fourth Proportional to 1,214,082.80, 1,821,124.20 and 859,497.20
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Solution
The fourth proportional to 1,214,082.80, 1,821,124.20 and 859,497.20 is: 1,289,245.80
Step by Step Solution
- Step 1: Write the proportion equation
1,214,082.80 : 1,821,124.20 = 859,497.20 : x - Step 2: Convert to fraction form
1,214,082.80/1,821,124.20 = 859,497.20/x - Step 3: Cross multiply
1,214,082.80x = 1,821,124.20 × 859,497.20 - Step 4: Simplify right side
1,214,082.80x = 1,565,251,150,752.24 - Step 5: Solve for x
x = 1,565,251,150,752.24/1,214,082.80 - Step 6: Final answer
x = 1,289,245.80
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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.