Finding the Fourth Proportional to 1,009,361.28, 1,515,091.68 and 743,422.08
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Solution
The fourth proportional to 1,009,361.28, 1,515,091.68 and 743,422.08 is: 1,115,906.30
Step by Step Solution
- Step 1: Write the proportion equation
1,009,361.28 : 1,515,091.68 = 743,422.08 : x - Step 2: Convert to fraction form
1,009,361.28/1,515,091.68 = 743,422.08/x - Step 3: Cross multiply
1,009,361.28x = 1,515,091.68 × 743,422.08 - Step 4: Simplify right side
1,009,361.28x = 1,126,352,608,136.29 - Step 5: Solve for x
x = 1,126,352,608,136.29/1,009,361.28 - Step 6: Final answer
x = 1,115,906.30
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.