Finding the Fourth Proportional to 762,678.69, 1,052,493.68 and 418,520.35
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Solution
The fourth proportional to 762,678.69, 1,052,493.68 and 418,520.35 is: 577,556.49
Step by Step Solution
- Step 1: Write the proportion equation
762,678.69 : 1,052,493.68 = 418,520.35 : x - Step 2: Convert to fraction form
762,678.69/1,052,493.68 = 418,520.35/x - Step 3: Cross multiply
762,678.69x = 1,052,493.68 × 418,520.35 - Step 4: Simplify right side
762,678.69x = 440,490,025,688.31 - Step 5: Solve for x
x = 440,490,025,688.31/762,678.69 - Step 6: Final answer
x = 577,556.49
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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.