Finding the Fourth Proportional to 495,378.19, 683,627.88 and 280,512.73
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Solution
The fourth proportional to 495,378.19, 683,627.88 and 280,512.73 is: 387,110.95
Step by Step Solution
- Step 1: Write the proportion equation
495,378.19 : 683,627.88 = 280,512.73 : x - Step 2: Convert to fraction form
495,378.19/683,627.88 = 280,512.73/x - Step 3: Cross multiply
495,378.19x = 683,627.88 × 280,512.73 - Step 4: Simplify right side
495,378.19x = 191,766,322,922.91 - Step 5: Solve for x
x = 191,766,322,922.91/495,378.19 - Step 6: Final answer
x = 387,110.95
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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.