Finding the Fourth Proportional to 1,321,785.84, 1,824,069.18 and 718,173.84
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Solution
The fourth proportional to 1,321,785.84, 1,824,069.18 and 718,173.84 is: 991,082.46
Step by Step Solution
- Step 1: Write the proportion equation
1,321,785.84 : 1,824,069.18 = 718,173.84 : x - Step 2: Convert to fraction form
1,321,785.84/1,824,069.18 = 718,173.84/x - Step 3: Cross multiply
1,321,785.84x = 1,824,069.18 × 718,173.84 - Step 4: Simplify right side
1,321,785.84x = 1,309,998,767,426.25 - Step 5: Solve for x
x = 1,309,998,767,426.25/1,321,785.84 - Step 6: Final answer
x = 991,082.46
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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.