Finding the Fourth Proportional to 467,694.49, 644,987.91 and 306,490.99
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Solution
The fourth proportional to 467,694.49, 644,987.91 and 306,490.99 is: 422,675.46
Step by Step Solution
- Step 1: Write the proportion equation
467,694.49 : 644,987.91 = 306,490.99 : x - Step 2: Convert to fraction form
467,694.49/644,987.91 = 306,490.99/x - Step 3: Cross multiply
467,694.49x = 644,987.91 × 306,490.99 - Step 4: Simplify right side
467,694.49x = 197,682,983,073.93 - Step 5: Solve for x
x = 197,682,983,073.93/467,694.49 - Step 6: Final answer
x = 422,675.46
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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.