Finding the Fourth Proportional to 489,751.74, 734,911.23 and 205,416.99
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Solution
The fourth proportional to 489,751.74, 734,911.23 and 205,416.99 is: 308,244.44
Step by Step Solution
- Step 1: Write the proportion equation
489,751.74 : 734,911.23 = 205,416.99 : x - Step 2: Convert to fraction form
489,751.74/734,911.23 = 205,416.99/x - Step 3: Cross multiply
489,751.74x = 734,911.23 × 205,416.99 - Step 4: Simplify right side
489,751.74x = 150,963,252,783.80 - Step 5: Solve for x
x = 150,963,252,783.80/489,751.74 - Step 6: Final answer
x = 308,244.44
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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.