Finding the Fourth Proportional to 745,336.43, 1,029,203.57 and 721,234.75
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Solution
The fourth proportional to 745,336.43, 1,029,203.57 and 721,234.75 is: 995,922.58
Step by Step Solution
- Step 1: Write the proportion equation
745,336.43 : 1,029,203.57 = 721,234.75 : x - Step 2: Convert to fraction form
745,336.43/1,029,203.57 = 721,234.75/x - Step 3: Cross multiply
745,336.43x = 1,029,203.57 × 721,234.75 - Step 4: Simplify right side
745,336.43x = 742,297,379,508.06 - Step 5: Solve for x
x = 742,297,379,508.06/745,336.43 - Step 6: Final answer
x = 995,922.58
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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.