Finding the Fourth Proportional to 557,657.48, 769,571.98 and 303,008.70
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Solution
The fourth proportional to 557,657.48, 769,571.98 and 303,008.70 is: 418,154.54
Step by Step Solution
- Step 1: Write the proportion equation
557,657.48 : 769,571.98 = 303,008.70 : x - Step 2: Convert to fraction form
557,657.48/769,571.98 = 303,008.70/x - Step 3: Cross multiply
557,657.48x = 769,571.98 × 303,008.70 - Step 4: Simplify right side
557,657.48x = 233,187,005,216.23 - Step 5: Solve for x
x = 233,187,005,216.23/557,657.48 - Step 6: Final answer
x = 418,154.54
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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.