Finding the Fourth Proportional to 920,890.69, 1,382,045.29 and 741,415.21
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Solution
The fourth proportional to 920,890.69, 1,382,045.29 and 741,415.21 is: 1,112,693.84
Step by Step Solution
- Step 1: Write the proportion equation
920,890.69 : 1,382,045.29 = 741,415.21 : x - Step 2: Convert to fraction form
920,890.69/1,382,045.29 = 741,415.21/x - Step 3: Cross multiply
920,890.69x = 1,382,045.29 × 741,415.21 - Step 4: Simplify right side
920,890.69x = 1,024,669,393,606.21 - Step 5: Solve for x
x = 1,024,669,393,606.21/920,890.69 - Step 6: Final answer
x = 1,112,693.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.