Finding the Fourth Proportional to 669,398.94, 923,137.20 and 439,550.70
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Solution
The fourth proportional to 669,398.94, 923,137.20 and 439,550.70 is: 606,164.09
Step by Step Solution
- Step 1: Write the proportion equation
669,398.94 : 923,137.20 = 439,550.70 : x - Step 2: Convert to fraction form
669,398.94/923,137.20 = 439,550.70/x - Step 3: Cross multiply
669,398.94x = 923,137.20 × 439,550.70 - Step 4: Simplify right side
669,398.94x = 405,765,602,456.04 - Step 5: Solve for x
x = 405,765,602,456.04/669,398.94 - Step 6: Final answer
x = 606,164.09
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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.