Finding the Fourth Proportional to 391,874.02, 587,894.15 and 125,821.42
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Solution
The fourth proportional to 391,874.02, 587,894.15 and 125,821.42 is: 188,758.82
Step by Step Solution
- Step 1: Write the proportion equation
391,874.02 : 587,894.15 = 125,821.42 : x - Step 2: Convert to fraction form
391,874.02/587,894.15 = 125,821.42/x - Step 3: Cross multiply
391,874.02x = 587,894.15 × 125,821.42 - Step 4: Simplify right side
391,874.02x = 73,969,675,607.51 - Step 5: Solve for x
x = 73,969,675,607.51/391,874.02 - Step 6: Final answer
x = 188,758.82
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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.