Finding the Fourth Proportional to 515,651.92, 711,588.93 and 286,195.75
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Solution
The fourth proportional to 515,651.92, 711,588.93 and 286,195.75 is: 394,944.18
Step by Step Solution
- Step 1: Write the proportion equation
515,651.92 : 711,588.93 = 286,195.75 : x - Step 2: Convert to fraction form
515,651.92/711,588.93 = 286,195.75/x - Step 3: Cross multiply
515,651.92x = 711,588.93 × 286,195.75 - Step 4: Simplify right side
515,651.92x = 203,653,722,524.12 - Step 5: Solve for x
x = 203,653,722,524.12/515,651.92 - Step 6: Final answer
x = 394,944.18
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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.