Finding the Fourth Proportional to 415,226.60, 621,803.10 and 274,221.80
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Solution
The fourth proportional to 415,226.60, 621,803.10 and 274,221.80 is: 410,647.98
Step by Step Solution
- Step 1: Write the proportion equation
415,226.60 : 621,803.10 = 274,221.80 : x - Step 2: Convert to fraction form
415,226.60/621,803.10 = 274,221.80/x - Step 3: Cross multiply
415,226.60x = 621,803.10 × 274,221.80 - Step 4: Simplify right side
415,226.60x = 170,511,965,327.58 - Step 5: Solve for x
x = 170,511,965,327.58/415,226.60 - Step 6: Final answer
x = 410,647.98
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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.