Finding the Fourth Proportional to 474,108.80, 711,163.20 and 399,459.20
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Solution
The fourth proportional to 474,108.80, 711,163.20 and 399,459.20 is: 599,188.80
Step by Step Solution
- Step 1: Write the proportion equation
474,108.80 : 711,163.20 = 399,459.20 : x - Step 2: Convert to fraction form
474,108.80/711,163.20 = 399,459.20/x - Step 3: Cross multiply
474,108.80x = 711,163.20 × 399,459.20 - Step 4: Simplify right side
474,108.80x = 284,080,682,941.44 - Step 5: Solve for x
x = 284,080,682,941.44/474,108.80 - Step 6: Final answer
x = 599,188.80
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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.