Finding the Fourth Proportional to 398,701.80, 598,052.70 and 383,149.80
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Solution
The fourth proportional to 398,701.80, 598,052.70 and 383,149.80 is: 574,724.70
Step by Step Solution
- Step 1: Write the proportion equation
398,701.80 : 598,052.70 = 383,149.80 : x - Step 2: Convert to fraction form
398,701.80/598,052.70 = 383,149.80/x - Step 3: Cross multiply
398,701.80x = 598,052.70 × 383,149.80 - Step 4: Simplify right side
398,701.80x = 229,143,772,394.46 - Step 5: Solve for x
x = 229,143,772,394.46/398,701.80 - Step 6: Final answer
x = 574,724.70
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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.