Finding the Fourth Proportional to 385,588.80, 578,383.20 and 273,395.70
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Solution
The fourth proportional to 385,588.80, 578,383.20 and 273,395.70 is: 410,093.55
Step by Step Solution
- Step 1: Write the proportion equation
385,588.80 : 578,383.20 = 273,395.70 : x - Step 2: Convert to fraction form
385,588.80/578,383.20 = 273,395.70/x - Step 3: Cross multiply
385,588.80x = 578,383.20 × 273,395.70 - Step 4: Simplify right side
385,588.80x = 158,127,479,832.24 - Step 5: Solve for x
x = 158,127,479,832.24/385,588.80 - Step 6: Final answer
x = 410,093.55
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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.