Finding the Fourth Proportional to 394,497.80, 591,746.70 and 268,526.60
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Solution
The fourth proportional to 394,497.80, 591,746.70 and 268,526.60 is: 402,789.90
Step by Step Solution
- Step 1: Write the proportion equation
394,497.80 : 591,746.70 = 268,526.60 : x - Step 2: Convert to fraction form
394,497.80/591,746.70 = 268,526.60/x - Step 3: Cross multiply
394,497.80x = 591,746.70 × 268,526.60 - Step 4: Simplify right side
394,497.80x = 158,899,729,412.22 - Step 5: Solve for x
x = 158,899,729,412.22/394,497.80 - Step 6: Final answer
x = 402,789.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.