Finding the Fourth Proportional to 579,328.19, 799,519.98 and 321,230.80
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Solution
The fourth proportional to 579,328.19, 799,519.98 and 321,230.80 is: 443,324.61
Step by Step Solution
- Step 1: Write the proportion equation
579,328.19 : 799,519.98 = 321,230.80 : x - Step 2: Convert to fraction form
579,328.19/799,519.98 = 321,230.80/x - Step 3: Cross multiply
579,328.19x = 799,519.98 × 321,230.80 - Step 4: Simplify right side
579,328.19x = 256,830,442,791.38 - Step 5: Solve for x
x = 256,830,442,791.38/579,328.19 - Step 6: Final answer
x = 443,324.61
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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.