Finding the Fourth Proportional to 755,713.13, 1,042,917.80 and 445,628.12
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Solution
The fourth proportional to 755,713.13, 1,042,917.80 and 445,628.12 is: 614,986.66
Step by Step Solution
- Step 1: Write the proportion equation
755,713.13 : 1,042,917.80 = 445,628.12 : x - Step 2: Convert to fraction form
755,713.13/1,042,917.80 = 445,628.12/x - Step 3: Cross multiply
755,713.13x = 1,042,917.80 × 445,628.12 - Step 4: Simplify right side
755,713.13x = 464,753,491,085.81 - Step 5: Solve for x
x = 464,753,491,085.81/755,713.13 - Step 6: Final answer
x = 614,986.66
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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.