Finding the Fourth Proportional to 724,706.96, 1,000,187.84 and 438,229.12
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Solution
The fourth proportional to 724,706.96, 1,000,187.84 and 438,229.12 is: 604,811.96
Step by Step Solution
- Step 1: Write the proportion equation
724,706.96 : 1,000,187.84 = 438,229.12 : x - Step 2: Convert to fraction form
724,706.96/1,000,187.84 = 438,229.12/x - Step 3: Cross multiply
724,706.96x = 1,000,187.84 × 438,229.12 - Step 4: Simplify right side
724,706.96x = 438,311,436,957.90 - Step 5: Solve for x
x = 438,311,436,957.90/724,706.96 - Step 6: Final answer
x = 604,811.96
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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.