Finding the Fourth Proportional to 418,398.79, 577,391.07 and 227,411.68
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Solution
The fourth proportional to 418,398.79, 577,391.07 and 227,411.68 is: 313,828.52
Step by Step Solution
- Step 1: Write the proportion equation
418,398.79 : 577,391.07 = 227,411.68 : x - Step 2: Convert to fraction form
418,398.79/577,391.07 = 227,411.68/x - Step 3: Cross multiply
418,398.79x = 577,391.07 × 227,411.68 - Step 4: Simplify right side
418,398.79x = 131,305,473,245.70 - Step 5: Solve for x
x = 131,305,473,245.70/418,398.79 - Step 6: Final answer
x = 313,828.52
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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.