Finding the Fourth Proportional to 391,771.79, 587,657.82 and 107,465.30
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Solution
The fourth proportional to 391,771.79, 587,657.82 and 107,465.30 is: 161,197.99
Step by Step Solution
- Step 1: Write the proportion equation
391,771.79 : 587,657.82 = 107,465.30 : x - Step 2: Convert to fraction form
391,771.79/587,657.82 = 107,465.30/x - Step 3: Cross multiply
391,771.79x = 587,657.82 × 107,465.30 - Step 4: Simplify right side
391,771.79x = 63,152,823,923.65 - Step 5: Solve for x
x = 63,152,823,923.65/391,771.79 - Step 6: Final answer
x = 161,197.99
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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.