Finding the Fourth Proportional to 1,009,983.96, 1,393,782.66 and 557,274.96
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Solution
The fourth proportional to 1,009,983.96, 1,393,782.66 and 557,274.96 is: 769,042.09
Step by Step Solution
- Step 1: Write the proportion equation
1,009,983.96 : 1,393,782.66 = 557,274.96 : x - Step 2: Convert to fraction form
1,009,983.96/1,393,782.66 = 557,274.96/x - Step 3: Cross multiply
1,009,983.96x = 1,393,782.66 × 557,274.96 - Step 4: Simplify right side
1,009,983.96x = 776,720,176,100.19 - Step 5: Solve for x
x = 776,720,176,100.19/1,009,983.96 - Step 6: Final answer
x = 769,042.09
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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.