Finding the Fourth Proportional to 1,425,912.80, 2,137,141.20 and 825,720.80
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Solution
The fourth proportional to 1,425,912.80, 2,137,141.20 and 825,720.80 is: 1,237,580.55
Step by Step Solution
- Step 1: Write the proportion equation
1,425,912.80 : 2,137,141.20 = 825,720.80 : x - Step 2: Convert to fraction form
1,425,912.80/2,137,141.20 = 825,720.80/x - Step 3: Cross multiply
1,425,912.80x = 2,137,141.20 × 825,720.80 - Step 4: Simplify right side
1,425,912.80x = 1,764,681,941,376.96 - Step 5: Solve for x
x = 1,764,681,941,376.96/1,425,912.80 - Step 6: Final answer
x = 1,237,580.55
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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.