Finding the Fourth Proportional to 548,722.29, 757,266.21 and 306,990.48
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Solution
The fourth proportional to 548,722.29, 757,266.21 and 306,990.48 is: 423,663.34
Step by Step Solution
- Step 1: Write the proportion equation
548,722.29 : 757,266.21 = 306,990.48 : x - Step 2: Convert to fraction form
548,722.29/757,266.21 = 306,990.48/x - Step 3: Cross multiply
548,722.29x = 757,266.21 × 306,990.48 - Step 4: Simplify right side
548,722.29x = 232,473,517,295.68 - Step 5: Solve for x
x = 232,473,517,295.68/548,722.29 - Step 6: Final answer
x = 423,663.34
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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.