Finding the Fourth Proportional to 391,975.72, 587,674.14 and 125,582.12
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Solution
The fourth proportional to 391,975.72, 587,674.14 and 125,582.12 is: 188,280.45
Step by Step Solution
- Step 1: Write the proportion equation
391,975.72 : 587,674.14 = 125,582.12 : x - Step 2: Convert to fraction form
391,975.72/587,674.14 = 125,582.12/x - Step 3: Cross multiply
391,975.72x = 587,674.14 × 125,582.12 - Step 4: Simplify right side
391,975.72x = 73,801,364,370.38 - Step 5: Solve for x
x = 73,801,364,370.38/391,975.72 - Step 6: Final answer
x = 188,280.45
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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.