Finding the Fourth Proportional to 415,840.14, 573,718.43 and 339,226.79
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Solution
The fourth proportional to 415,840.14, 573,718.43 and 339,226.79 is: 468,017.98
Step by Step Solution
- Step 1: Write the proportion equation
415,840.14 : 573,718.43 = 339,226.79 : x - Step 2: Convert to fraction form
415,840.14/573,718.43 = 339,226.79/x - Step 3: Cross multiply
415,840.14x = 573,718.43 × 339,226.79 - Step 4: Simplify right side
415,840.14x = 194,620,659,676.61 - Step 5: Solve for x
x = 194,620,659,676.61/415,840.14 - Step 6: Final answer
x = 468,017.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.