Finding the Fourth Proportional to 1,345,647.68, 1,857,007.68 and 742,057.28
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Solution
The fourth proportional to 1,345,647.68, 1,857,007.68 and 742,057.28 is: 1,024,046.70
Step by Step Solution
- Step 1: Write the proportion equation
1,345,647.68 : 1,857,007.68 = 742,057.28 : x - Step 2: Convert to fraction form
1,345,647.68/1,857,007.68 = 742,057.28/x - Step 3: Cross multiply
1,345,647.68x = 1,857,007.68 × 742,057.28 - Step 4: Simplify right side
1,345,647.68x = 1,378,006,067,959.91 - Step 5: Solve for x
x = 1,378,006,067,959.91/1,345,647.68 - Step 6: Final answer
x = 1,024,046.70
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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.