Finding the Fourth Proportional to 722,211.84, 996,640.19 and 399,915.02
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Solution
The fourth proportional to 722,211.84, 996,640.19 and 399,915.02 is: 551,876.00
Step by Step Solution
- Step 1: Write the proportion equation
722,211.84 : 996,640.19 = 399,915.02 : x - Step 2: Convert to fraction form
722,211.84/996,640.19 = 399,915.02/x - Step 3: Cross multiply
722,211.84x = 996,640.19 × 399,915.02 - Step 4: Simplify right side
722,211.84x = 398,571,381,516.65 - Step 5: Solve for x
x = 398,571,381,516.65/722,211.84 - Step 6: Final answer
x = 551,876.00
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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.