Finding the Fourth Proportional to 445,423.20, 668,134.80 and 370,627.80
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Solution
The fourth proportional to 445,423.20, 668,134.80 and 370,627.80 is: 555,941.70
Step by Step Solution
- Step 1: Write the proportion equation
445,423.20 : 668,134.80 = 370,627.80 : x - Step 2: Convert to fraction form
445,423.20/668,134.80 = 370,627.80/x - Step 3: Cross multiply
445,423.20x = 668,134.80 × 370,627.80 - Step 4: Simplify right side
445,423.20x = 247,629,331,027.44 - Step 5: Solve for x
x = 247,629,331,027.44/445,423.20 - Step 6: Final answer
x = 555,941.70
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Similar ratio
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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.