Finding the Fourth Proportional to 764,742.69, 1,055,633.99 and 656,879.85
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Solution
The fourth proportional to 764,742.69, 1,055,633.99 and 656,879.85 is: 906,742.49
Step by Step Solution
- Step 1: Write the proportion equation
764,742.69 : 1,055,633.99 = 656,879.85 : x - Step 2: Convert to fraction form
764,742.69/1,055,633.99 = 656,879.85/x - Step 3: Cross multiply
764,742.69x = 1,055,633.99 × 656,879.85 - Step 4: Simplify right side
764,742.69x = 693,424,693,721.70 - Step 5: Solve for x
x = 693,424,693,721.70/764,742.69 - Step 6: Final answer
x = 906,742.49
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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.