Finding the Fourth Proportional to 1,352,979.36, 1,867,141.68 and 772,190.82
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Solution
The fourth proportional to 1,352,979.36, 1,867,141.68 and 772,190.82 is: 1,065,640.55
Step by Step Solution
- Step 1: Write the proportion equation
1,352,979.36 : 1,867,141.68 = 772,190.82 : x - Step 2: Convert to fraction form
1,352,979.36/1,867,141.68 = 772,190.82/x - Step 3: Cross multiply
1,352,979.36x = 1,867,141.68 × 772,190.82 - Step 4: Simplify right side
1,352,979.36x = 1,441,789,664,935.38 - Step 5: Solve for x
x = 1,441,789,664,935.38/1,352,979.36 - Step 6: Final answer
x = 1,065,640.55
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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.