Finding the Fourth Proportional to 3,612,418.18, 5,414,834.16 and 1,215,430.62
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Solution
The fourth proportional to 3,612,418.18, 5,414,834.16 and 1,215,430.62 is: 1,821,869.70
Step by Step Solution
- Step 1: Write the proportion equation
3,612,418.18 : 5,414,834.16 = 1,215,430.62 : x - Step 2: Convert to fraction form
3,612,418.18/5,414,834.16 = 1,215,430.62/x - Step 3: Cross multiply
3,612,418.18x = 5,414,834.16 × 1,215,430.62 - Step 4: Simplify right side
3,612,418.18x = 6,581,355,240,285.98 - Step 5: Solve for x
x = 6,581,355,240,285.98/3,612,418.18 - Step 6: Final answer
x = 1,821,869.70
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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.