Finding the Fourth Proportional to 1,308,465.12, 1,805,691.84 and 727,696.40
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Solution
The fourth proportional to 1,308,465.12, 1,805,691.84 and 727,696.40 is: 1,004,226.58
Step by Step Solution
- Step 1: Write the proportion equation
1,308,465.12 : 1,805,691.84 = 727,696.40 : x - Step 2: Convert to fraction form
1,308,465.12/1,805,691.84 = 727,696.40/x - Step 3: Cross multiply
1,308,465.12x = 1,805,691.84 × 727,696.40 - Step 4: Simplify right side
1,308,465.12x = 1,313,995,451,477.38 - Step 5: Solve for x
x = 1,313,995,451,477.38/1,308,465.12 - Step 6: Final answer
x = 1,004,226.58
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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.