Finding the Fourth Proportional to 1,326,505.20, 1,830,057.48 and 816,321.84
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Solution
The fourth proportional to 1,326,505.20, 1,830,057.48 and 816,321.84 is: 1,126,204.32
Step by Step Solution
- Step 1: Write the proportion equation
1,326,505.20 : 1,830,057.48 = 816,321.84 : x - Step 2: Convert to fraction form
1,326,505.20/1,830,057.48 = 816,321.84/x - Step 3: Cross multiply
1,326,505.20x = 1,830,057.48 × 816,321.84 - Step 4: Simplify right side
1,326,505.20x = 1,493,915,889,379.36 - Step 5: Solve for x
x = 1,493,915,889,379.36/1,326,505.20 - Step 6: Final answer
x = 1,126,204.32
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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.