Finding the Fourth Proportional to 998,478.18, 1,377,738.99 and 568,766.70
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Solution
The fourth proportional to 998,478.18, 1,377,738.99 and 568,766.70 is: 784,806.39
Step by Step Solution
- Step 1: Write the proportion equation
998,478.18 : 1,377,738.99 = 568,766.70 : x - Step 2: Convert to fraction form
998,478.18/1,377,738.99 = 568,766.70/x - Step 3: Cross multiply
998,478.18x = 1,377,738.99 × 568,766.70 - Step 4: Simplify right side
998,478.18x = 783,612,058,803.63 - Step 5: Solve for x
x = 783,612,058,803.63/998,478.18 - Step 6: Final answer
x = 784,806.39
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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.