Finding the Fourth Proportional to 1,640,858.05, 2,461,287.07 and 442,778.44
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Solution
The fourth proportional to 1,640,858.05, 2,461,287.07 and 442,778.44 is: 664,167.66
Step by Step Solution
- Step 1: Write the proportion equation
1,640,858.05 : 2,461,287.07 = 442,778.44 : x - Step 2: Convert to fraction form
1,640,858.05/2,461,287.07 = 442,778.44/x - Step 3: Cross multiply
1,640,858.05x = 2,461,287.07 × 442,778.44 - Step 4: Simplify right side
1,640,858.05x = 1,089,804,847,566.03 - Step 5: Solve for x
x = 1,089,804,847,566.03/1,640,858.05 - Step 6: Final answer
x = 664,167.66
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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.