Finding the Fourth Proportional to 628,452.36, 942,826.14 and 207,728.20
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Solution
The fourth proportional to 628,452.36, 942,826.14 and 207,728.20 is: 311,641.09
Step by Step Solution
- Step 1: Write the proportion equation
628,452.36 : 942,826.14 = 207,728.20 : x - Step 2: Convert to fraction form
628,452.36/942,826.14 = 207,728.20/x - Step 3: Cross multiply
628,452.36x = 942,826.14 × 207,728.20 - Step 4: Simplify right side
628,452.36x = 195,851,576,975.15 - Step 5: Solve for x
x = 195,851,576,975.15/628,452.36 - Step 6: Final answer
x = 311,641.09
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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.