Finding the Fourth Proportional to 720,133.20, 1,080,199.80 and 246,823.20
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Solution
The fourth proportional to 720,133.20, 1,080,199.80 and 246,823.20 is: 370,234.80
Step by Step Solution
- Step 1: Write the proportion equation
720,133.20 : 1,080,199.80 = 246,823.20 : x - Step 2: Convert to fraction form
720,133.20/1,080,199.80 = 246,823.20/x - Step 3: Cross multiply
720,133.20x = 1,080,199.80 × 246,823.20 - Step 4: Simplify right side
720,133.20x = 266,618,371,275.36 - Step 5: Solve for x
x = 266,618,371,275.36/720,133.20 - Step 6: Final answer
x = 370,234.80
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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.