Finding the Fourth Proportional to 465,415.20, 698,122.80 and 434,080.80
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Solution
The fourth proportional to 465,415.20, 698,122.80 and 434,080.80 is: 651,121.20
Step by Step Solution
- Step 1: Write the proportion equation
465,415.20 : 698,122.80 = 434,080.80 : x - Step 2: Convert to fraction form
465,415.20/698,122.80 = 434,080.80/x - Step 3: Cross multiply
465,415.20x = 698,122.80 × 434,080.80 - Step 4: Simplify right side
465,415.20x = 303,041,703,522.24 - Step 5: Solve for x
x = 303,041,703,522.24/465,415.20 - Step 6: Final answer
x = 651,121.20
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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.