Finding the Fourth Proportional to 495,605.49, 683,949.57 and 280,745.49
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Solution
The fourth proportional to 495,605.49, 683,949.57 and 280,745.49 is: 387,436.70
Step by Step Solution
- Step 1: Write the proportion equation
495,605.49 : 683,949.57 = 280,745.49 : x - Step 2: Convert to fraction form
495,605.49/683,949.57 = 280,745.49/x - Step 3: Cross multiply
495,605.49x = 683,949.57 × 280,745.49 - Step 4: Simplify right side
495,605.49x = 192,015,757,164.94 - Step 5: Solve for x
x = 192,015,757,164.94/495,605.49 - Step 6: Final answer
x = 387,436.70
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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.