Finding the Fourth Proportional to 1,114,704.74, 1,538,235.18 and 605,405.90
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Solution
The fourth proportional to 1,114,704.74, 1,538,235.18 and 605,405.90 is: 835,428.99
Step by Step Solution
- Step 1: Write the proportion equation
1,114,704.74 : 1,538,235.18 = 605,405.90 : x - Step 2: Convert to fraction form
1,114,704.74/1,538,235.18 = 605,405.90/x - Step 3: Cross multiply
1,114,704.74x = 1,538,235.18 × 605,405.90 - Step 4: Simplify right side
1,114,704.74x = 931,256,653,559.56 - Step 5: Solve for x
x = 931,256,653,559.56/1,114,704.74 - Step 6: Final answer
x = 835,428.99
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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.