Finding the Fourth Proportional to 816,011.82, 1,126,101.15 and 448,484.99
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Solution
The fourth proportional to 816,011.82, 1,126,101.15 and 448,484.99 is: 618,911.94
Step by Step Solution
- Step 1: Write the proportion equation
816,011.82 : 1,126,101.15 = 448,484.99 : x - Step 2: Convert to fraction form
816,011.82/1,126,101.15 = 448,484.99/x - Step 3: Cross multiply
816,011.82x = 1,126,101.15 × 448,484.99 - Step 4: Simplify right side
816,011.82x = 505,039,457,366.23 - Step 5: Solve for x
x = 505,039,457,366.23/816,011.82 - Step 6: Final answer
x = 618,911.94
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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.