Finding the Fourth Proportional to 766,635.70, 1,057,964.24 and 422,483.97
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Solution
The fourth proportional to 766,635.70, 1,057,964.24 and 422,483.97 is: 583,031.72
Step by Step Solution
- Step 1: Write the proportion equation
766,635.70 : 1,057,964.24 = 422,483.97 : x - Step 2: Convert to fraction form
766,635.70/1,057,964.24 = 422,483.97/x - Step 3: Cross multiply
766,635.70x = 1,057,964.24 × 422,483.97 - Step 4: Simplify right side
766,635.70x = 446,972,932,233.23 - Step 5: Solve for x
x = 446,972,932,233.23/766,635.70 - Step 6: Final answer
x = 583,031.72
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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.