Finding the Fourth Proportional to 1,438,939.92, 1,985,753.12 and 794,360.40
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Solution
The fourth proportional to 1,438,939.92, 1,985,753.12 and 794,360.40 is: 1,096,226.20
Step by Step Solution
- Step 1: Write the proportion equation
1,438,939.92 : 1,985,753.12 = 794,360.40 : x - Step 2: Convert to fraction form
1,438,939.92/1,985,753.12 = 794,360.40/x - Step 3: Cross multiply
1,438,939.92x = 1,985,753.12 × 794,360.40 - Step 4: Simplify right side
1,438,939.92x = 1,577,403,642,704.45 - Step 5: Solve for x
x = 1,577,403,642,704.45/1,438,939.92 - Step 6: Final answer
x = 1,096,226.20
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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.