Finding the Fourth Proportional to 1,117,278.72, 1,541,727.36 and 633,689.28
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Solution
The fourth proportional to 1,117,278.72, 1,541,727.36 and 633,689.28 is: 874,424.69
Step by Step Solution
- Step 1: Write the proportion equation
1,117,278.72 : 1,541,727.36 = 633,689.28 : x - Step 2: Convert to fraction form
1,117,278.72/1,541,727.36 = 633,689.28/x - Step 3: Cross multiply
1,117,278.72x = 1,541,727.36 × 633,689.28 - Step 4: Simplify right side
1,117,278.72x = 976,976,100,714.70 - Step 5: Solve for x
x = 976,976,100,714.70/1,117,278.72 - Step 6: Final answer
x = 874,424.69
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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.