Finding the Fourth Proportional to 397,574.20, 596,687.70 and 394,463.80
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Solution
The fourth proportional to 397,574.20, 596,687.70 and 394,463.80 is: 592,019.55
Step by Step Solution
- Step 1: Write the proportion equation
397,574.20 : 596,687.70 = 394,463.80 : x - Step 2: Convert to fraction form
397,574.20/596,687.70 = 394,463.80/x - Step 3: Cross multiply
397,574.20x = 596,687.70 × 394,463.80 - Step 4: Simplify right side
397,574.20x = 235,371,697,555.26 - Step 5: Solve for x
x = 235,371,697,555.26/397,574.20 - Step 6: Final answer
x = 592,019.55
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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.