Finding the Fourth Proportional to 812,982.99, 1,121,284.71 and 555,067.38
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Solution
The fourth proportional to 812,982.99, 1,121,284.71 and 555,067.38 is: 765,561.61
Step by Step Solution
- Step 1: Write the proportion equation
812,982.99 : 1,121,284.71 = 555,067.38 : x - Step 2: Convert to fraction form
812,982.99/1,121,284.71 = 555,067.38/x - Step 3: Cross multiply
812,982.99x = 1,121,284.71 × 555,067.38 - Step 4: Simplify right side
812,982.99x = 622,388,566,213.76 - Step 5: Solve for x
x = 622,388,566,213.76/812,982.99 - Step 6: Final answer
x = 765,561.61
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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.