Finding the Fourth Proportional to 631,732.98, 871,789.40 and 345,252.99
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Solution
The fourth proportional to 631,732.98, 871,789.40 and 345,252.99 is: 476,447.97
Step by Step Solution
- Step 1: Write the proportion equation
631,732.98 : 871,789.40 = 345,252.99 : x - Step 2: Convert to fraction form
631,732.98/871,789.40 = 345,252.99/x - Step 3: Cross multiply
631,732.98x = 871,789.40 × 345,252.99 - Step 4: Simplify right side
631,732.98x = 300,987,897,863.44 - Step 5: Solve for x
x = 300,987,897,863.44/631,732.98 - Step 6: Final answer
x = 476,447.97
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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.