Finding the Fourth Proportional to 1,135,728, 1,703,880 and 425,758.08
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Solution
The fourth proportional to 1,135,728, 1,703,880 and 425,758.08 is: 638,745.08
Step by Step Solution
- Step 1: Write the proportion equation
1,135,728 : 1,703,880 = 425,758.08 : x - Step 2: Convert to fraction form
1,135,728/1,703,880 = 425,758.08/x - Step 3: Cross multiply
1,135,728x = 1,703,880 × 425,758.08 - Step 4: Simplify right side
1,135,728x = 725,440,677,350.40 - Step 5: Solve for x
x = 725,440,677,350.40/1,135,728 - Step 6: Final answer
x = 638,745.08
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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.