Finding the Fourth Proportional to 514,778.49, 771,708.47 and 261,917.55
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Solution
The fourth proportional to 514,778.49, 771,708.47 and 261,917.55 is: 392,642.65
Step by Step Solution
- Step 1: Write the proportion equation
514,778.49 : 771,708.47 = 261,917.55 : x - Step 2: Convert to fraction form
514,778.49/771,708.47 = 261,917.55/x - Step 3: Cross multiply
514,778.49x = 771,708.47 × 261,917.55 - Step 4: Simplify right side
514,778.49x = 202,123,990,467.06 - Step 5: Solve for x
x = 202,123,990,467.06/514,778.49 - Step 6: Final answer
x = 392,642.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.