Finding the Fourth Proportional to 858,861.20, 1,288,291.80 and 297,895.70
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Solution
The fourth proportional to 858,861.20, 1,288,291.80 and 297,895.70 is: 446,843.55
Step by Step Solution
- Step 1: Write the proportion equation
858,861.20 : 1,288,291.80 = 297,895.70 : x - Step 2: Convert to fraction form
858,861.20/1,288,291.80 = 297,895.70/x - Step 3: Cross multiply
858,861.20x = 1,288,291.80 × 297,895.70 - Step 4: Simplify right side
858,861.20x = 383,776,587,565.26 - Step 5: Solve for x
x = 383,776,587,565.26/858,861.20 - Step 6: Final answer
x = 446,843.55
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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.