Finding the Fourth Proportional to 493,481.70, 740,518.74 and 212,998.68
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Solution
The fourth proportional to 493,481.70, 740,518.74 and 212,998.68 is: 319,625.86
Step by Step Solution
- Step 1: Write the proportion equation
493,481.70 : 740,518.74 = 212,998.68 : x - Step 2: Convert to fraction form
493,481.70/740,518.74 = 212,998.68/x - Step 3: Cross multiply
493,481.70x = 740,518.74 × 212,998.68 - Step 4: Simplify right side
493,481.70x = 157,729,514,135.26 - Step 5: Solve for x
x = 157,729,514,135.26/493,481.70 - Step 6: Final answer
x = 319,625.86
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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.