Finding the Fourth Proportional to 718,866.97, 991,987.33 and 396,582.44
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Solution
The fourth proportional to 718,866.97, 991,987.33 and 396,582.44 is: 547,256.69
Step by Step Solution
- Step 1: Write the proportion equation
718,866.97 : 991,987.33 = 396,582.44 : x - Step 2: Convert to fraction form
718,866.97/991,987.33 = 396,582.44/x - Step 3: Cross multiply
718,866.97x = 991,987.33 × 396,582.44 - Step 4: Simplify right side
718,866.97x = 393,404,757,269.00 - Step 5: Solve for x
x = 393,404,757,269.00/718,866.97 - Step 6: Final answer
x = 547,256.69
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.