Finding the Fourth Proportional to 515,680.58, 711,625.86 and 286,226.01
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Solution
The fourth proportional to 515,680.58, 711,625.86 and 286,226.01 is: 394,984.48
Step by Step Solution
- Step 1: Write the proportion equation
515,680.58 : 711,625.86 = 286,226.01 : x - Step 2: Convert to fraction form
515,680.58/711,625.86 = 286,226.01/x - Step 3: Cross multiply
515,680.58x = 711,625.86 × 286,226.01 - Step 4: Simplify right side
515,680.58x = 203,685,825,531.36 - Step 5: Solve for x
x = 203,685,825,531.36/515,680.58 - Step 6: Final answer
x = 394,984.48
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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.