Finding the Fourth Proportional to 515,703.96, 711,660.24 and 286,247.88
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Solution
The fourth proportional to 515,703.96, 711,660.24 and 286,247.88 is: 395,015.84
Step by Step Solution
- Step 1: Write the proportion equation
515,703.96 : 711,660.24 = 286,247.88 : x - Step 2: Convert to fraction form
515,703.96/711,660.24 = 286,247.88/x - Step 3: Cross multiply
515,703.96x = 711,660.24 × 286,247.88 - Step 4: Simplify right side
515,703.96x = 203,711,234,980.29 - Step 5: Solve for x
x = 203,711,234,980.29/515,703.96 - Step 6: Final answer
x = 395,015.84
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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.