Finding the Fourth Proportional to 1,157,121.27, 1,734,618.51 and 398,782.62
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Solution
The fourth proportional to 1,157,121.27, 1,734,618.51 and 398,782.62 is: 597,807.45
Step by Step Solution
- Step 1: Write the proportion equation
1,157,121.27 : 1,734,618.51 = 398,782.62 : x - Step 2: Convert to fraction form
1,157,121.27/1,734,618.51 = 398,782.62/x - Step 3: Cross multiply
1,157,121.27x = 1,734,618.51 × 398,782.62 - Step 4: Simplify right side
1,157,121.27x = 691,735,714,118.30 - Step 5: Solve for x
x = 691,735,714,118.30/1,157,121.27 - Step 6: Final answer
x = 597,807.45
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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.