Finding the Fourth Proportional to 326,349.69, 489,527.91 and 98,647.20
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Solution
The fourth proportional to 326,349.69, 489,527.91 and 98,647.20 is: 147,971.82
Step by Step Solution
- Step 1: Write the proportion equation
326,349.69 : 489,527.91 = 98,647.20 : x - Step 2: Convert to fraction form
326,349.69/489,527.91 = 98,647.20/x - Step 3: Cross multiply
326,349.69x = 489,527.91 × 98,647.20 - Step 4: Simplify right side
326,349.69x = 48,290,556,992.24 - Step 5: Solve for x
x = 48,290,556,992.24/326,349.69 - Step 6: Final answer
x = 147,971.82
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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.