Finding the Fourth Proportional to 417,773.80, 626,660.70 and 207,821.80
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Solution
The fourth proportional to 417,773.80, 626,660.70 and 207,821.80 is: 311,732.70
Step by Step Solution
- Step 1: Write the proportion equation
417,773.80 : 626,660.70 = 207,821.80 : x - Step 2: Convert to fraction form
417,773.80/626,660.70 = 207,821.80/x - Step 3: Cross multiply
417,773.80x = 626,660.70 × 207,821.80 - Step 4: Simplify right side
417,773.80x = 130,233,754,663.26 - Step 5: Solve for x
x = 130,233,754,663.26/417,773.80 - Step 6: Final answer
x = 311,732.70
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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.