Finding the Fourth Proportional to 434,515.20, 651,772.80 and 379,219.20
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Solution
The fourth proportional to 434,515.20, 651,772.80 and 379,219.20 is: 568,828.80
Step by Step Solution
- Step 1: Write the proportion equation
434,515.20 : 651,772.80 = 379,219.20 : x - Step 2: Convert to fraction form
434,515.20/651,772.80 = 379,219.20/x - Step 3: Cross multiply
434,515.20x = 651,772.80 × 379,219.20 - Step 4: Simplify right side
434,515.20x = 247,164,759,797.76 - Step 5: Solve for x
x = 247,164,759,797.76/434,515.20 - Step 6: Final answer
x = 568,828.80
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1.5x scale
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.