Finding the Fourth Proportional to 445,423.70, 668,135.55 and 370,628.30
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Solution
The fourth proportional to 445,423.70, 668,135.55 and 370,628.30 is: 555,942.45
Step by Step Solution
- Step 1: Write the proportion equation
445,423.70 : 668,135.55 = 370,628.30 : x - Step 2: Convert to fraction form
445,423.70/668,135.55 = 370,628.30/x - Step 3: Cross multiply
445,423.70x = 668,135.55 × 370,628.30 - Step 4: Simplify right side
445,423.70x = 247,629,943,066.07 - Step 5: Solve for x
x = 247,629,943,066.07/445,423.70 - Step 6: Final answer
x = 555,942.45
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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.