Finding the Fourth Proportional to 1,319,864.97, 1,821,414.83 and 716,252.97
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Solution
The fourth proportional to 1,319,864.97, 1,821,414.83 and 716,252.97 is: 988,429.73
Step by Step Solution
- Step 1: Write the proportion equation
1,319,864.97 : 1,821,414.83 = 716,252.97 : x - Step 2: Convert to fraction form
1,319,864.97/1,821,414.83 = 716,252.97/x - Step 3: Cross multiply
1,319,864.97x = 1,821,414.83 × 716,252.97 - Step 4: Simplify right side
1,319,864.97x = 1,304,593,778,008.28 - Step 5: Solve for x
x = 1,304,593,778,008.28/1,319,864.97 - Step 6: Final answer
x = 988,429.73
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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.