Finding the Fourth Proportional to 821,929.74, 1,133,942.67 and 515,827.50
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Solution
The fourth proportional to 821,929.74, 1,133,942.67 and 515,827.50 is: 711,640.89
Step by Step Solution
- Step 1: Write the proportion equation
821,929.74 : 1,133,942.67 = 515,827.50 : x - Step 2: Convert to fraction form
821,929.74/1,133,942.67 = 515,827.50/x - Step 3: Cross multiply
821,929.74x = 1,133,942.67 × 515,827.50 - Step 4: Simplify right side
821,929.74x = 584,918,812,609.43 - Step 5: Solve for x
x = 584,918,812,609.43/821,929.74 - Step 6: Final answer
x = 711,640.89
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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.