Finding the Fourth Proportional to 398,434.20, 597,977.70 and 395,323.80
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Solution
The fourth proportional to 398,434.20, 597,977.70 and 395,323.80 is: 593,309.55
Step by Step Solution
- Step 1: Write the proportion equation
398,434.20 : 597,977.70 = 395,323.80 : x - Step 2: Convert to fraction form
398,434.20/597,977.70 = 395,323.80/x - Step 3: Cross multiply
398,434.20x = 597,977.70 × 395,323.80 - Step 4: Simplify right side
398,434.20x = 236,394,816,679.26 - Step 5: Solve for x
x = 236,394,816,679.26/398,434.20 - Step 6: Final answer
x = 593,309.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.