Finding the Fourth Proportional to 495,591.97, 683,930.94 and 280,731.98
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Solution
The fourth proportional to 495,591.97, 683,930.94 and 280,731.98 is: 387,418.07
Step by Step Solution
- Step 1: Write the proportion equation
495,591.97 : 683,930.94 = 280,731.98 : x - Step 2: Convert to fraction form
495,591.97/683,930.94 = 280,731.98/x - Step 3: Cross multiply
495,591.97x = 683,930.94 × 280,731.98 - Step 4: Simplify right side
495,591.97x = 192,001,285,358.55 - Step 5: Solve for x
x = 192,001,285,358.55/495,591.97 - Step 6: Final answer
x = 387,418.07
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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.