Finding the Fourth Proportional to 1,428,559.57, 1,970,850.99 and 816,383.91
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Solution
The fourth proportional to 1,428,559.57, 1,970,850.99 and 816,383.91 is: 1,126,289.08
Step by Step Solution
- Step 1: Write the proportion equation
1,428,559.57 : 1,970,850.99 = 816,383.91 : x - Step 2: Convert to fraction form
1,428,559.57/1,970,850.99 = 816,383.91/x - Step 3: Cross multiply
1,428,559.57x = 1,970,850.99 × 816,383.91 - Step 4: Simplify right side
1,428,559.57x = 1,608,971,037,243.57 - Step 5: Solve for x
x = 1,608,971,037,243.57/1,428,559.57 - Step 6: Final answer
x = 1,126,289.08
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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.