Finding the Fourth Proportional to 326,605.66, 489,782.53 and 126,899.76
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Solution
The fourth proportional to 326,605.66, 489,782.53 and 126,899.76 is: 190,300.70
Step by Step Solution
- Step 1: Write the proportion equation
326,605.66 : 489,782.53 = 126,899.76 : x - Step 2: Convert to fraction form
326,605.66/489,782.53 = 126,899.76/x - Step 3: Cross multiply
326,605.66x = 489,782.53 × 126,899.76 - Step 4: Simplify right side
326,605.66x = 62,153,285,509.19 - Step 5: Solve for x
x = 62,153,285,509.19/326,605.66 - Step 6: Final answer
x = 190,300.70
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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.