Finding the Fourth Proportional to 804,639.70, 1,207,737.15 and 489,711.70
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Solution
The fourth proportional to 804,639.70, 1,207,737.15 and 489,711.70 is: 735,040.81
Step by Step Solution
- Step 1: Write the proportion equation
804,639.70 : 1,207,737.15 = 489,711.70 : x - Step 2: Convert to fraction form
804,639.70/1,207,737.15 = 489,711.70/x - Step 3: Cross multiply
804,639.70x = 1,207,737.15 × 489,711.70 - Step 4: Simplify right side
804,639.70x = 591,443,012,879.66 - Step 5: Solve for x
x = 591,443,012,879.66/804,639.70 - Step 6: Final answer
x = 735,040.81
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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.