Finding the Fourth Proportional to 1,022,912.52, 1,412,224.14 and 909,421.26
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Solution
The fourth proportional to 1,022,912.52, 1,412,224.14 and 909,421.26 is: 1,255,539.09
Step by Step Solution
- Step 1: Write the proportion equation
1,022,912.52 : 1,412,224.14 = 909,421.26 : x - Step 2: Convert to fraction form
1,022,912.52/1,412,224.14 = 909,421.26/x - Step 3: Cross multiply
1,022,912.52x = 1,412,224.14 × 909,421.26 - Step 4: Simplify right side
1,022,912.52x = 1,284,306,656,801.22 - Step 5: Solve for x
x = 1,284,306,656,801.22/1,022,912.52 - Step 6: Final answer
x = 1,255,539.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.