Finding the Fourth Proportional to 1,198,197.13, 1,797,311.58 and 399,478.93
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Solution
The fourth proportional to 1,198,197.13, 1,797,311.58 and 399,478.93 is: 599,223.68
Step by Step Solution
- Step 1: Write the proportion equation
1,198,197.13 : 1,797,311.58 = 399,478.93 : x - Step 2: Convert to fraction form
1,198,197.13/1,797,311.58 = 399,478.93/x - Step 3: Cross multiply
1,198,197.13x = 1,797,311.58 × 399,478.93 - Step 4: Simplify right side
1,198,197.13x = 717,988,095,871.06 - Step 5: Solve for x
x = 717,988,095,871.06/1,198,197.13 - Step 6: Final answer
x = 599,223.68
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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.