Finding the Fourth Proportional to 515,609.24, 711,530.04 and 286,153.20
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Solution
The fourth proportional to 515,609.24, 711,530.04 and 286,153.20 is: 394,885.48
Step by Step Solution
- Step 1: Write the proportion equation
515,609.24 : 711,530.04 = 286,153.20 : x - Step 2: Convert to fraction form
515,609.24/711,530.04 = 286,153.20/x - Step 3: Cross multiply
515,609.24x = 711,530.04 × 286,153.20 - Step 4: Simplify right side
515,609.24x = 203,606,597,842.13 - Step 5: Solve for x
x = 203,606,597,842.13/515,609.24 - Step 6: Final answer
x = 394,885.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.