Finding the Fourth Proportional to 495,539.80, 743,309.70 and 408,059.80
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Solution
The fourth proportional to 495,539.80, 743,309.70 and 408,059.80 is: 612,089.70
Step by Step Solution
- Step 1: Write the proportion equation
495,539.80 : 743,309.70 = 408,059.80 : x - Step 2: Convert to fraction form
495,539.80/743,309.70 = 408,059.80/x - Step 3: Cross multiply
495,539.80x = 743,309.70 × 408,059.80 - Step 4: Simplify right side
495,539.80x = 303,314,807,520.06 - Step 5: Solve for x
x = 303,314,807,520.06/495,539.80 - Step 6: Final answer
x = 612,089.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.