Finding the Fourth Proportional to 870,992.62, 1,201,960.83 and 489,010.54
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Solution
The fourth proportional to 870,992.62, 1,201,960.83 and 489,010.54 is: 674,829.50
Step by Step Solution
- Step 1: Write the proportion equation
870,992.62 : 1,201,960.83 = 489,010.54 : x - Step 2: Convert to fraction form
870,992.62/1,201,960.83 = 489,010.54/x - Step 3: Cross multiply
870,992.62x = 1,201,960.83 × 489,010.54 - Step 4: Simplify right side
870,992.62x = 587,771,514,537.15 - Step 5: Solve for x
x = 587,771,514,537.15/870,992.62 - Step 6: Final answer
x = 674,829.50
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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.