Finding the Fourth Proportional to 515,504.18, 711,394.29 and 286,096.08
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Solution
The fourth proportional to 515,504.18, 711,394.29 and 286,096.08 is: 394,811.77
Step by Step Solution
- Step 1: Write the proportion equation
515,504.18 : 711,394.29 = 286,096.08 : x - Step 2: Convert to fraction form
515,504.18/711,394.29 = 286,096.08/x - Step 3: Cross multiply
515,504.18x = 711,394.29 × 286,096.08 - Step 4: Simplify right side
515,504.18x = 203,527,117,703.38 - Step 5: Solve for x
x = 203,527,117,703.38/515,504.18 - Step 6: Final answer
x = 394,811.77
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1.5x scale
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.