Finding the Fourth Proportional to 489,984.40, 734,803.80 and 174,451.60
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Solution
The fourth proportional to 489,984.40, 734,803.80 and 174,451.60 is: 261,615.88
Step by Step Solution
- Step 1: Write the proportion equation
489,984.40 : 734,803.80 = 174,451.60 : x - Step 2: Convert to fraction form
489,984.40/734,803.80 = 174,451.60/x - Step 3: Cross multiply
489,984.40x = 734,803.80 × 174,451.60 - Step 4: Simplify right side
489,984.40x = 128,187,698,596.08 - Step 5: Solve for x
x = 128,187,698,596.08/489,984.40 - Step 6: Final answer
x = 261,615.88
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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.