Finding the Fourth Proportional to 862,243.31, 1,189,838.84 and 517,874.65
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Solution
The fourth proportional to 862,243.31, 1,189,838.84 and 517,874.65 is: 714,632.82
Step by Step Solution
- Step 1: Write the proportion equation
862,243.31 : 1,189,838.84 = 517,874.65 : x - Step 2: Convert to fraction form
862,243.31/1,189,838.84 = 517,874.65/x - Step 3: Cross multiply
862,243.31x = 1,189,838.84 × 517,874.65 - Step 4: Simplify right side
862,243.31x = 616,187,367,257.44 - Step 5: Solve for x
x = 616,187,367,257.44/862,243.31 - Step 6: Final answer
x = 714,632.82
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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.