Finding the Fourth Proportional to 551,789.21, 828,262.97 and 489,010.97
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Solution
The fourth proportional to 551,789.21, 828,262.97 and 489,010.97 is: 734,029.72
Step by Step Solution
- Step 1: Write the proportion equation
551,789.21 : 828,262.97 = 489,010.97 : x - Step 2: Convert to fraction form
551,789.21/828,262.97 = 489,010.97/x - Step 3: Cross multiply
551,789.21x = 828,262.97 × 489,010.97 - Step 4: Simplify right side
551,789.21x = 405,029,678,374.78 - Step 5: Solve for x
x = 405,029,678,374.78/551,789.21 - Step 6: Final answer
x = 734,029.72
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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.