Finding the Fourth Proportional to 579,329.19, 799,521.36 and 321,231.80
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Solution
The fourth proportional to 579,329.19, 799,521.36 and 321,231.80 is: 443,325.99
Step by Step Solution
- Step 1: Write the proportion equation
579,329.19 : 799,521.36 = 321,231.80 : x - Step 2: Convert to fraction form
579,329.19/799,521.36 = 321,231.80/x - Step 3: Cross multiply
579,329.19x = 799,521.36 × 321,231.80 - Step 4: Simplify right side
579,329.19x = 256,831,685,611.25 - Step 5: Solve for x
x = 256,831,685,611.25/579,329.19 - Step 6: Final answer
x = 443,325.99
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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.