Finding the Fourth Proportional to 772,912.80, 1,066,620.12 and 471,106.80
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Solution
The fourth proportional to 772,912.80, 1,066,620.12 and 471,106.80 is: 650,127.66
Step by Step Solution
- Step 1: Write the proportion equation
772,912.80 : 1,066,620.12 = 471,106.80 : x - Step 2: Convert to fraction form
772,912.80/1,066,620.12 = 471,106.80/x - Step 3: Cross multiply
772,912.80x = 1,066,620.12 × 471,106.80 - Step 4: Simplify right side
772,912.80x = 502,491,991,548.82 - Step 5: Solve for x
x = 502,491,991,548.82/772,912.80 - Step 6: Final answer
x = 650,127.66
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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.