Finding the Fourth Proportional to 515,949.26, 711,986.01 and 286,521.09
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Solution
The fourth proportional to 515,949.26, 711,986.01 and 286,521.09 is: 395,385.80
Step by Step Solution
- Step 1: Write the proportion equation
515,949.26 : 711,986.01 = 286,521.09 : x - Step 2: Convert to fraction form
515,949.26/711,986.01 = 286,521.09/x - Step 3: Cross multiply
515,949.26x = 711,986.01 × 286,521.09 - Step 4: Simplify right side
515,949.26x = 203,999,007,649.95 - Step 5: Solve for x
x = 203,999,007,649.95/515,949.26 - Step 6: Final answer
x = 395,385.80
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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.