Finding the Fourth Proportional to 515,609.25, 711,530.06 and 286,153.21
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Solution
The fourth proportional to 515,609.25, 711,530.06 and 286,153.21 is: 394,885.49
Step by Step Solution
- Step 1: Write the proportion equation
515,609.25 : 711,530.06 = 286,153.21 : x - Step 2: Convert to fraction form
515,609.25/711,530.06 = 286,153.21/x - Step 3: Cross multiply
515,609.25x = 711,530.06 × 286,153.21 - Step 4: Simplify right side
515,609.25x = 203,606,609,617.05 - Step 5: Solve for x
x = 203,606,609,617.05/515,609.25 - Step 6: Final answer
x = 394,885.49
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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.