Finding the Fourth Proportional to 1,901,786.08, 2,851,629.34 and 780,642.40
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Solution
The fourth proportional to 1,901,786.08, 2,851,629.34 and 780,642.40 is: 1,170,532.69
Step by Step Solution
- Step 1: Write the proportion equation
1,901,786.08 : 2,851,629.34 = 780,642.40 : x - Step 2: Convert to fraction form
1,901,786.08/2,851,629.34 = 780,642.40/x - Step 3: Cross multiply
1,901,786.08x = 2,851,629.34 × 780,642.40 - Step 4: Simplify right side
1,901,786.08x = 2,226,102,771,888.02 - Step 5: Solve for x
x = 2,226,102,771,888.02/1,901,786.08 - Step 6: Final answer
x = 1,170,532.69
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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.