Finding the Fourth Proportional to 1,013,138.26, 1,398,133.64 and 560,429.26
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Solution
The fourth proportional to 1,013,138.26, 1,398,133.64 and 560,429.26 is: 773,393.95
Step by Step Solution
- Step 1: Write the proportion equation
1,013,138.26 : 1,398,133.64 = 560,429.26 : x - Step 2: Convert to fraction form
1,013,138.26/1,398,133.64 = 560,429.26/x - Step 3: Cross multiply
1,013,138.26x = 1,398,133.64 × 560,429.26 - Step 4: Simplify right side
1,013,138.26x = 783,555,001,246.31 - Step 5: Solve for x
x = 783,555,001,246.31/1,013,138.26 - Step 6: Final answer
x = 773,393.95
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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.